40mm Low-Velocity Grenades

8/6/2019 40mm Low-Velocity Grenades

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40mm Low-Velocity GrenadesGary's U.S. Infantry Weapons Reference Guide

DESCRIPTION

This page describes the most commonly used 40mm low-velocity rounds for

the U.S. M320, M203, and M79 grenade launchers. These rounds include

high-explosive, illuminating, signaling, CS, training, and multi-purpose

ammunition.

If fired into snow or mud, 40mm rounds may not hit hard enough to

detonate. An undetonated round may explode when stepped on or driven

over. During training in snow or mud, avoid this hazard by firing only TP

rounds.

40mm grenade launcher ammunition.

Model Type Length WeightArming

RangeEffect

M381 HE3.89 in(98.8mm)

0.503 lb(0.23kg)

8 - 10 ft(2.4 - 3m)

Casualty radius: 427ft (130 m)Kill radius: 16 ft (5m)

M382 Practice 3.89 in(98.8mm)

0.50 lb(0.23kg)

8 - 10 ft(2.4 - 3m)

Danger radius: 66 ft(20 m)

M386 HE3.89 in(98.8mm)

0.50 lb(0.23kg)

45 - 90 ft(14 - 27m)


M397,

M397A1

HE4.05 in(102.9

mm)

0.51 lb(0.23

kg)

45 - 90 ft(14 - 27

m)

Casualty radius: 427ft (130 m)

Kill radius: 16 ft (5m)

M406 HE3.894 in(98.9mm)

0.503 lb(0.23kg)

45 - 90 ft(14 - 27m)

http://www.inetres.com/gp/military/infantry/index.html#grenadehttp://www.inetres.com/gp/military/infantry/grenade/M203.htmlhttp://www.inetres.com/gp/military/infantry/grenade/M79.htmlhttp://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M381http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M382http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M386http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M397http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M397A1http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M406http://www.inetres.com/gp/military/infantry/index.html#grenadehttp://www.inetres.com/gp/military/infantry/grenade/M203.htmlhttp://www.inetres.com/gp/military/infantry/grenade/M79.htmlhttp://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M381http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M382http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M386http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M397http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M397A1http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M406


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M407A1 Practice3.894 in(98.9mm)

0.50 lb(0.23kg)

45 - 90 ft(14 - 27m)

Danger radius: 66 ft(20 m)

M433 HEDP4.05 in(102.9mm)

0.507 lb(0.23kg)

45 - 90 ft(14 - 27m)

Casualty radius: 427

ft (130 m)Incapacitationradius: 49 ft (15 m)Kill radius: 16 ft (5m)

M441 HE3.89 in(98.8mm)

0.503 lb(0.23kg)

8 - 10 ft(2.4 - 3m)


M576 Buckshot2.646 in(67.2mm)

0.254 lb(0.12kg)

N/AMaximum range: 98ft (30 m)

M583,M583A1

White StarParachute

5.272 in(133.9mm)

0.49 lb(0.22kg)

N/A

90,000candlepower. 656 ft(200 meters) indiameter for 40seconds

M585White StarCluster

5.268 in

(133.8mm)

0.41 lb

(0.19kg)

N/A55,000 candlepowerfor 7 seconds

M651 CS4.57 in(116.1mm)

0.63 lb(0.29kg)

33 - 98 ft(10 - 30m)

Area Coverage: 144yd (120 m)

M661Green StarParachute

5.272 in(133.9mm)

0.49 lb(0.22kg)

N/A

8,000 candlepower.656 ft (200 meters)in diameter for 40seconds

M662Red StarParachute

5.272 in(133.9mm)

0.49 lb(0.22kg)

N/A

20,000candlepower. 656 ft(200 meters) indiameter for 40seconds

M676, Smoke 5.212 in 0.48 lb ? Smoke burn time:
http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M407A1http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M433http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M441http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M576http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M583http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M583A1http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M585http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M651http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M661http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M662http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M676http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M407A1http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M433http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M441http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M576http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M583http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M583A1http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M585http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M651http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M661http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M662http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M676


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M680,M682

Canopy(132.4mm)

(0.22kg)

90 secondsminimum

M713,M715,

M716

SmokeGround

Marker

3.91 in(99.3

mm)

0.49 lb(0.22

kg)

50 - 150ft (15 -

45 m)

Smoke burn time:17 seconds

minimum

M781 Practice4.05 in(102.9mm)

0.45 lb(0.205kg)

N/ADanger radius: 66 ft(20 m)

M992IR StarParachute

5.272 in(133.9mm)

0.49 lb(0.22kg)

N/A

Max visiblecandlepower: 350.30 secondsminimum burn time.

M1006 Non-Lethal 3.95 in(100.3mm)

0.15 lb(0.068kg)

N/A Engagement Range:33 - 164 ft (10 - 50m)

M1029 Non-Lethal4.8 in(121.9mm)

0.47 lb(0.213kg)

N/A N/A

M381 40mm HE Cartridge
http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M680http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M682http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M713http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M715http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M716http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M781http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M992http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M1006http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M1029http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M680http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M682http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M713http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M715http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M716http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M781http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M992http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M1006http://www.inetres.com/gp/military/infantry/grenade/40mm_ammo.html#M1029


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Complete Round

Type HE

Classification Date 1972

Unit Cost ?

Length 3.89 in (98.8 mm)

Weight 0.503 lb (0.23 kg)

Projectile

Body Material Aluminum skirt and steel wire ball

Color Olive drab with yellow markings, yellow ogive

Filler 32 g Composition B

Fuze M552 point detonating

Case Components

Cartridge Case M118


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Propellant 330 mg M9

Primer M42 percussion

Performance

Maximum Range 1,312 ft (400 m)

Muzzle Velocity 250 fps (76 mps)

Arming Range 8 - 10 ft (2.4 - 3 m)

Effective Bursting AreaCasualty radius: 427 ft (130 m)Kill radius: 16 ft (5 m)

Use:

The M381 cartridge is a high explosive round designed to inflict personnel

casualties from ground burst effect.

Description:

The cartridge is a fixed round of ammunition consisting of a projectile

assembly and a cartridge case assembly.

The projectile has a hollow, one-piece aluminum body containing rotating

bands. A hollow aluminum ogive is fitted to the front end of the projectile. A

hollow steel ball assembly containing the bursting charge is fitted into the

rear of the projectile body. A booster charge with a point detonating fuze is

threaded into a well in the forward side of the ball.

The projectile assembly is press-fitted into a cartridge case. The case is a

hollow, aluminum bi-chambered cylinder with an annealed brass propellant

cup fitted into the cartridge base. The cup contains the propelling charge

with a percussion primer in the center. The cup acts as a high pressure

chamber and the hollow cavity in the case, which surrounds the cup, acts as

a low pressure chamber. The fuze contains an inertial ring operating through

push pins and levers upon a detonator.

Functioning:

The weapon firing pin strikes the percussion primer igniting the propelling

charge in the high-pressure chamber. The burning propelling charge

generates sufficient pressure to rupture the propellant cup forcing the


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expanding gases through vent holes into the low-pressure chamber.

The rotating band around the projectile engages the rifling in the launcher

tube to impart spin of 3,600 RPM to the projectile. The pressure created by

the expanding propellant gases in the low-pressure chamber forces theprojectile through the launcher barrel with a muzzle velocity of 76 meters

per second (250 fps).

Setback force from firing causes the firing pin in the fuze to be withdrawn

from the rotor ball detent, and centrifugal force from projectile rotation

causes the rotor ball assembly to align the detonator with the explosive

train. The fuze arms after the projectile has traveled approximately 2.4 to 3

meters (8 feet) from the launcher.

Upon graze or impact with the target, inertia causes the inertial ring to act

on the push pins, pivoting the levers inward to force the firing pin into the

detonator. The detonator ignites the booster charge, and the booster

detonates the explosive charge, producing blast and fragmentation of the

projectile body.


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M382 40mm Practice Cartridge

Complete Round

Type Practice


Unit Cost ?



Projectile

Body Material Aluminum skirt and steel ball

Color Olive drab with yellow markings

Filler 4.54 g inert yellow dye


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Case Components

Cartridge Case M118


Primer percussion

Performance




Danger Radius 66 ft (20 m)

Use:

The M382 cartridge is a practice impact type round.

Description:

This cartridge is a fixed round of ammunition consisting of a projectile body

and a cartridge case assembly containing a propelling charge and a

percussion primer.

A hollow, aluminum ogive is fitted to the front end of the projectile. Fitted in

the rear of the projectile is a hollow steel ball assembly containing a yellow

dye marking material. An RDX booster pellet with a point detonating fuze

assembly is threaded into a cavity at the forward side of the ball assembly.

The projectile assembly is press-fitted into the cartridge case. The case is a

hollow aluminum bi-chambered cylinder with an annealed brass propellant

cup assembly fitted into the center of the cartridge base. The cup contains

the propelling charge with a percussion primer in the center and acts as ahigh-pressure chamber. The hollow cavity in the case, which surrounds the

cup, acts as a low-pressure chamber. The fuze contains an inertial ring

operating through push pins and levers on the firing pin.

Functioning:


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charge in the high pressure chamber. The burning propelling charge

generates sufficient pressure to rupture the propellant cup and to force the

expanding gases from the burning propellant through vent holes into the

low-pressure chamber.


tube imparting a spin of 3600 rpm to the projectile and a muzzle velocity of

76 mps. The pressure created by the expanding propellant gases in the ]ow-

pressure chamber forces the projectile through the launcher barrel.

After the projectile leaves the launcher tube, setback force causes the firing

pin in the fuze to be withdrawn from the ball detent, and centrifugal force

created by rotation of the projectile causes the rotor ball assembly to alignthe detonator with the explosive train. The fuze arms after the projectile has

traveled approximately 2.4 to 3 meters (8 feet) from the launcher.

Upon graze or impact with the target, the inertial force from impact causes

the inertial ring to act on the push pins, pivoting the levers inward, and

forcing the firing pin into the detonator. The detonator explodes the RDX

booster pellet which shatters the chamber and emits a yellow puff of smoke

to simulate the explosion of a service round.


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Complete Round

Type HE

Classification Date ?

Unit Cost ?



Projectile





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Case Components

Cartridge Case M118


Primer M42 or FED 100 percussion

Performance



Arming Range 45 - 90 ft (14 - 27 m)

Effective Bursting Area Casualty radius: 427 ft (130 m)Kill radius: 16 ft (5 m)

Use:


casualties from ground burst effect.

Description:

The cartridge is a fixed round of ammunition consisting of an aluminum

projectile body with a rotating band, and cartridge case containing the

propelling charge and percussion primer.

A steel ball-shaped assembly containing the high explosive charge is fitted

into the rear of the projectile. The ball assembly has an open well on the

forward side. A point detonating fuze with booster charge is threaded into

the well. The fuze is covered by an aluminum ogive forming the nose of the

projectile.

The projectile body is press-fitted into the cartridge case. The case is a bi-chambered aluminum cylinder with an annealed brass propellant cup fitted

into the center of the base. The cup contains the propelling charge and the

percussion primer is fitted in the center. The cup acts as a high-pressure

chamber while the cavity in the case surrounding the cup acts as a low-

pressure chamber.


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Functioning:



generates sufficient pressure to rupture the propellant cup and force the

exploding gases through the vent holes into the low-pressure chamber.


tube imparting spin to the projectile. The pressure created by the expanding

propellant gases in the low-pressure chamber forces the projectile through

the tube with a muzzle velocity of 76 meters per second.

After the projectile leaves the launcher tube, setback causes a fuze setback

pin to move reward and clear the fuze rotor which is held in an unarmed

position by a firing pin, centrifugal lock, and the setback pin in the fuzeassembly. Centrifugal force, generated by the rotation of the projectile,

causes three pivoted inertial weights and the fuze centrifugal lock to move

outward. This action causes the spring loaded firing pin and lock to retract

from the rotor and gear train, respectively. The rotor, now free to rotate,

aligns the fuze detonator with the explosive train. A fuze escapement

mechanism delays arming by controlling rotor movement. The fuze arms

after the projectile has traveled at least 14 meters (45 feet) from the

launcher tube.

Upon impact with the target, the firing pin is forced into the detonator. The

detonator triggers the booster charge, in turn, detonating the high-explosive

bursting charge, producing a blast and fragmentation of the projectile body.

M397 40mm HE (Jump-Up Fragmentation) Cartridge


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Complete Round

Type HE


Unit Cost ?



Projectile



Filler 32 g OCTOL


Case Components

Cartridge Case M118


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Performance





Use:


casualties using air burst effect.

Description:

The cartridge is a fixed round consisting of an aluminum projectile body with

rotating band press-fitted into a cartridge case containing a propelling

charge and percussion primer.

A hollow steel ball assembly containing the HE charge and a delay detonator

is fitted into the rear of the projectile. A point detonating fuze with a

separation charge is threaded into a well on the front side of the ball.

The cartridge case is a bi-chambered aluminum cylinder with an annealed

brass cup pressed into the center of the base. The cup contains the

propelling charge and the percussion primer extends into the center of the

charge. The cup constitutes a high-pressure chamber, and the hollow cavity

in the case surrounding the cup acts as a low-pressure chamber.

Functioning:

The weapon firing pin strikes the primer to ignite the propelling charge. The

burning propellant ruptures the propellant cup, and the expanding-gases are

vented into the low-pressure chamber to propel the projectile through the

tube with a muzzle velocity of 76 meters per second.

The rotating band engages the spiral lands in the launcher tube to impart


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M397A1 40mm HE (Jump-Up Fragmentation) Cartridge

Complete Round

Type HE


Unit Cost ?



Projectile



Filler 32 g OCTOL


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Fuze M536E1 point detonating

Case Components

Cartridge Case M118



Performance





Use:

The M397A1 cartridge is a high explosive round designed to inflict personnel

casualties using air burst effect. The M397A1 functions with improved

performance on snow targets in comparison to the performance of the M397

and M406.

Description:

This cartridge is a fixed round of ammunition consisting of a one-piece steel

projectile body with a metal rotating band and a cartridge case assembly

containing the propelling charge and percussion primer.

A hollow ogive is fitted to the front end of the projectile. A hollow steel ball

assembly containing a delay detonator, a booster charge, and an HE

bursting charge, is fitted into the rear end of the projectile. A point

detonating fuze assembly is threaded into the front opening of the ball

assembly.


hollow bi-chambered aluminum cylinder with an annealed brass propellant

cup assembly fitted into the center of the cartridge base. The cup contains

the propelling charge and a percussion primer in the center. The cup acts as

a high-pressure chamber, and the hollow cavity in the case, which surrounds


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the cup, acts as a low-pressure chamber.

Functioning:


charge in the high-pressure chamber. The burning propelling chargegenerates sufficient pressure to rupture the propellant cup forcing the

expanding gases from the burning propellant through the vent holes into the

low-pressure chamber.


tube, imparting spin to the projectile. The pressure, created by the

expanding propellant gases in the low-pressure chamber, forces the

projectile through the tube with a muzzle velocity of 76 meters per second.

When the projectile is fired, setback forces cause the fuze setback pin to

retract from the fuze rotor causing the bellville type washer to be crushed.

This permits the fuze housing assembly containing the rotor to retract from

the stationary fuze firing pin. In the unarmed position, a set-back pin, a

firing pin, and a centrifugal lock in the fuze assembly, combine to prevent

movement of the rotor. This keeps the fuze detonator from aligning with the

separation charge assembly. Centrifugal force, from rotation of the

projectile, causes the centrifugal lock to retract from the fuze gear train. The

rotor, now free to rotate, lines up the detonator with the separation charge

assembly. A fuze escapment mechanism delays arming by controlling rotor

movement. The fuze arms after the projectile has traveled at least 14

meters (45 feet) from the launcher tube.

Upon impact with the target, the M55 detonator within the setback sleeve

and housing assembly is driven forward into the firing pin. In turn, the

detonator ignites the separation charge assembly which initiates the delay

detonator of the auxiliary fuze in the ball assembly. Gas pressure drives thedelay detonator into the armed position. Concurrently, the ball assembly

with the auxiliary fuze ejects from the rear of the projectile into the air. The

pyrotechnic delay detonator in the ball assembly detonates the booster

charge, in turn, detonating the bursting charge 80 milliseconds after

ejection. This results in a blast and fragmentation of the ball assembly 5 feet

above the impact point.


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Complete Round

Type HE


Unit Cost ?



Projectile





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Case Components

Cartridge Case M118



Performance





Use:


casualties using ground burst effect.

Description:

This cartridge is a fixed round of ammunition consisting of an aluminum

projectile body with a rotating band and a cartridge case assembly

containing the propelling charge and percussion primer.

A hollow aluminum ogive is fitted to the front end of the projectile. A steel

ball assembly containing a booster charge and a bursting charge is fitted in

the rear end of the projectile. A point detonating fuze assembly is threaded

into the front opening of the ball assembly.


hollow bi-chambered aluminum cylinder with an annealed brass propellantcup assembly fitted into the center of the cartridge base. The cup contains

the propelling charge and a percussion primer in the center. It acts as a

high-pressure chamber while the hollow cavity in the case, which surrounds

the cup, acts as a low-pressure chamber.

Functioning:


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generates sufficient pressure to rupture the propellant cup forcing the

expanding gases through the vent holes into the low-pressure chamber.


tube imparting a spin of 3,600 rpm to the projectile. The pressure created by

the expanding propellant gases in the low-pressure chamber force the



retract from the fuze rotor. The rotor is held in an unarmed position by a

firing pin, a centrifugal lock, and the setback pin in the fuze assembly.

Centrifugal force, generated by the rotation of the projectile, causes thethree pivoted inertia weights and the centrifugal lock in the fuze to move

outward. In turn, the spring loaded firing pin and the lock retract from the

rotor and fuze gear train, respectively. The rotor, now free to rotate, lines up

the fuze detonator with the explosive train. A fuze escapement mechanism

delays arming by controlling rotor movement. The fuze arms after the

projectile has traveled at least 14 meters (45 feet) from the launcher tube.

Upon impact with the target, the firing pin is forced into the detonator.

Concurrently the detonator triggers the booster charge, in turn, detonating

the high explosive bursting charge, which produces a blast and

fragmentation of the projectile body. The projectile body is wire wrapped so

that fragmentation is more uniform on impact.


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M407A1 40mm Practice Cartridge

Complete Round

Type Practice


Unit Cost ?



Projectile

Body Material Aluminum skirt and plastic ball

Color Blue with white markings

Filler Yellow dye


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generates sufficient pressure to rupture the propellant cup and to release

the expanding propellant gases through the vent holes into the low-pressure

chamber.


tube imparting a spin of 3,600 rpm to the projectile. The pressure, created

by the expanding propellant gases in the low-pressure chamber, forces the



retract from the fuze rotor. The rotor is held in an unarmed position by a

firing pin, a centrifugal lock, and the setback pin in the fuze assembly.

Centrifugal force, generated by the rotation of the projectile, causes thethree pivoted inertia weights and the centrifugal lock in the fuze, to move

outward. In turn, the spring loaded firing pin and the lock retract from the

rotor and fuze gear train, respectively. The rotor, now free to rotate, lines up

the fuze detonator with the explosive train. A fuze escapement mechanism

delays arming by controlling rotor movement. The fuze arms after the

projectile has traveled at least 14 to 27 meters (45 to 90 feet) from the

launcher tube.

Upon impact with the target, the firing pin is forced into the detonator.

Concurrently, the detonator ignites the RDX booster pellet which fragments

the plastic ball and ignited the two yellow smoke pellets, causing a puff of

yellow smoke which simulates explosive impact.


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M433 40mm HEDP Cartridge

Complete Round

Type HEDP


Unit Cost $30 (Fiscal Year 2005), $68 (FY 2010)



Projectile

Body Material Aluminum skirt with steel cup attached

Color Olive drab with white markings, yellow ogive

Filler 45 g Composition A


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Fuze M550 point initiating, base detonating

Case Components

Cartridge Case M118



Performance




Effective Bursting AreaCasualty radius: 427 ft (130 m)Incapacitation radius: 49 ft (15 m)Kill radius: 16 ft (5 m)

Use:


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The M433 cartridge is a dual purpose impact type round which is designed to

penetrate at least two inches of steel armor at 0 angle of obliquity and

inflict personnel casualties in the target area. This item is Code A, approved

for service use. This is a training standard item used in both training and

combat.

Description:

The cartridge is a fixed round of ammunition consisting of a one-piece,

aluminum projectile body with rotating band, and a cartridge case assembly.

A hollow aluminum ogive is fitted to the front end of the projectile. A PIBD

fuze assembly with an RDX spit-back charge and copper cone liner is fitted

to the opening of the projectile cavity. The cavity is sealed by the fuzeassembly and contains the high explosive shaped charge.

The projectile assembly is press-fitted into the cartridge case assembly. The

case is a hollow bi-chambered aluminum cylinder with a steel closing plug

crimped into the opening of the annealed brass propellant cup assembly in

the cartridge base. The propellant cup has vent holes in the sides, is sealed

in the bottom by the closing plug, and contains the propelling charge. A

percussion primer is crimped into the center of the closing plug. The

propellant cup acts as a high-pressure chamber, and the upper hollow cavity

in the case acts as a low-pressure chamber.

Functioning:

The weapon firing pin strikes the percussion primer, which ignites the

propelling charge. Pressure created by the burning propellant in the high-

pressure chamber causes the propellant cup to rupture. The propellant gases

escape through vent holes into the low-pressure chamber.


tube to impart a spin of 3,750 rpm to the projectile. Expanding gases in the

low-pressure chamber force the projectile through the tube with a muzzle

velocity of 76 meters per second.

After the projectile leaves the launcher tube, initial rotation causes the fuze


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detent to free the fuze rotor. Centrifugal force causes three hammer weights

to move radially outward, allowing a conical spring to move the firing pin

forward, disengaging the rotor. Dynamic imbalance of the rotor causes it to

rotate to the armed position, aligning the M55 detonator with the firing pin

and the spit-back shaped charge. A fuze escapement mechanism retardsrotor movement, delaying arming until the projectile has traveled at least 45

feet from the launcher tube.

Upon impact with the target, the firing pin is driven into the detonator,

triggering the spit-back shaped charge and producing a jet blast which

detonates the HE bursting charge. Detonation of the bursting charge forms

an armor-piercing jet of molten metal and fragmentation of the projectile

body.

Effect:

The M433 HEDP grenade has a small shaped charge that penetrates better

than the HE round. It also has a thin wire wrapping that bursts into a dense

fragmentation pattern, creating casualties out to 5 meters. Because they

explode on contact, HEDP rounds achieve the same penetration regardless of

range.

The high explosive dual purpose round can penetrate 2 inches (50 mm) of

armor plate, 12 inches (300 mm) of pine logs, 16 inches (400 mm) of

concrete blocks, or 20 inches (500 mm) of sandbags at ranges up to 1,312

feet (400 m).

If projected into an interior room, the 40mm HEDP can penetrate all interior

partition-type walls. It splinters plywood and plaster walls, making a hole

large enough to fire a rifle through. It is better to have HEDP rounds pass

into a room and explode on a far wall, even though much of the round's

energy is wasted penetrating the back wall. The fragmentation produced inthe room causes more casualties than the high-explosive jet formed by the

shaped charge.

The fragments from the HEDP round do not reliably penetrate interior walls.

They are also stopped by office furniture, sandbags, helmets, and protective

vests (flak jackets).


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Test-fired inert M433 HEDP

U.S. Army photo

490x260, 157K, PNG

Test-fired inert M433 HEDP

U.S. Army photo

830x500, 528K, PNG

M433 HEDP

U.S. Army photo597x476, 48K, JPEG
http://www.inetres.com/gp/military/infantry/grenade/40mm/40mm_M433.jpghttp://www.inetres.com/gp/military/infantry/grenade/40mm/40mm_M433_03.pnghttp://www.inetres.com/gp/military/infantry/grenade/40mm/40mm_M433_02.png


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M550 Fuze:

Type Classified: 1971. Over 20 Million fuzes produced.

Two independent safety locks: setback pin and one spin detent.



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Complete Round

Type HE


Unit Cost ?



Projectile





Case Components

Cartridge Case M118


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Performance





Use:


casualties using ground burst effect.

Description:

The cartridge is a fixed round of ammunition consisting of a projectile body

with a rotating band and a cartridge case assembly.

A hollow aluminum ogive is fitted to the front of the projectile. A point

detonating fuze with a booster charge is threaded into the opening of a steel

ball assembly crimped into the projectile base. The ball assembly contains an

HE bursting charge.

The projectile assembly is press-fitted into the aluminum cartridge case. The

case is a hollow bi-chambered cylinder with a metal closing plug crimped

into the cartridge case. The propellant cup assembly is sealed by the closing

plug in the bottom, and contains the propelling charge. A percussion primer

is crimped into a center opening in the closing plug. The propellant cup

assembly acts as a high-pressure chamber, and the hollow cavity in the case

surrounding the cup acts as a low-pressure chamber.

Functioning:

The weapon firing pin strikes the primer igniting the propelling charge.

Gases from the burning propellant expand in the high-pressure chamber.

This pressure ruptures the propellant cup, forcing the gases to escape

through the vents into the low-pressure chamber.


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tube imparting spin to the projectile. Expanding gases in the low-pressure

chamber force the projectile through the tube with a muzzle velocity of 76

meters per second.

At the time of firing, setback causes the firing pin to be withdrawn from the

fuze rotor detent. Prior to this action, the detonator in the rotor is held out of

line with the explosive train. With the rotor free, centrifugal force causes the

rotor ball to turn and align the detonator with the firing pin. The fuze arms

after the projectile has traveled approximately 2 to 4 meters (8 feet) from

the launcher tube.

Upon graze or impact, inertia throws the inertial ring forward against thepush pins. The push pins pivot the levers inward to drive the firing pin into

the detonator. The detonator initiates the booster to detonate the high

explosive charge resulting in blast and fragmentation of the projectile body.

M576 40mm Multiple Projectile (Buckshot) Cartridge


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Complete Round

Type Buckshot


Unit Cost ?



Projectile

Body Material Molded polyethylene plastic

Color Black with white markings

Filler 20 24 g metal pellets

Fuze None

Case Components

Cartridge Case M199


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Primer 0.45 cal, Remington, No. 2-l/2 percussion

Performance

Maximum Range 98 ft (30 m)


Arming Range N/A

Use:

The M576 cartridge is intended for use in counter-insurgency and

conventional operations in jungle environments, particularly during periods

of poor visibility where personnel targets appear at short distances without

warning and are vulnerably exposed only fleetingly.

Description:

The cartridge is a fixed round of ammunition consisting of a multiple

projectile assembly and a cartridge case assembly.

The projectile assembly includes a polyethylene sabot carrier with one center

cavity and several smaller cavities around the outside perimeter. A plastic

pellet cup filled with 20 metal pellets is fitted into the center cavity and is

covered by a snap on cap. The outer cavities act as air scoops. An obturatoron the rear of the sabot serves as a propellant gas seal between the

cartridge case and the sabot. The round has no mechanical-type fuze.

The projectile assembly is crimped into the cartridge case. The case is a

hollow bi-chambered cylinder with a metal closing plug crimped into the

open well of the propellant chamber in the cartridge base. The propellant

chamber acts as a high-pressure chamber and has ten vent holes in the top

sealed by a copper disk. The upper hollow cavity in the case serves as a low-

pressure chamber. A percussion primer is crimped into a center opening in

the closing plug.

Functioning:

The weapon firing pin strikes the primer which ignites the propelling charge.



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The pressure ruptures the copper disk allowing the expanding gases to

escape through the vent holes into the low-pressure chamber.

Continuing gas expansion forces the projectile through the launcher tube.

Setback force from cartridge ignition causes the pellet cup in the sabotcarrier to move rearward. This movement disengages the cap from the pellet

cup. Upon reaching the muzzle, the sabot carrier and pellet cup are

discarded allowing the metal pellets free flight to the target.

Effect:

Though it is a multipurpose round, the M576 is most effective in thick

vegetated areas or for room clearing. Be sure to aim buckshot rounds at the

foot of the target.

M583, M583A1 40mm White Star Parachute Cartridge

M661 40mm Green Star Parachute Cartridge

M662 40mm Red Star Parachute Cartridge


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Complete Round

Type Star Parachute

ClassificationDate

M583A1: 1985

Unit CostM583: $39 (Fiscal Year 2005), M583: $53 (Fiscal Year2007), M661: $73 (Fiscal Year 2010)

Length 5.272 in (133.9 mm)


Projectile

Body Material Impact or bar alloy aluminum

Color White with black markings


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FillerIllumination composition. M583A1: 93 g. M661: 86 g.M662: 85 g

Fuze None

Case Components

Cartridge Case M195



Performance

Burst Height 600 ft (183 m)


Arming Range N/A

AverageCandlepower

M583A1: 90,000. M661: 8,000. M662: 20,000.

Use:

The star parachute round is used for illumination and signals and is lighter

and more accurate than comparable handheld signal rounds. This item is

Code A, approved for service use. This is a training standard item used in

both training and combat.

Description:



The projectile has a one piece, hollow aluminum body with a metal rotating

band. A plastic ogive, embossed with a raised letter for night identification of

payload, is snapped into an O-ring in the front opening of the projectile

cavity. The cavity contains a pyrotechnic flare candle assembly, and anintegral ignition/ejection charge attached to a 20 inch diameter parachute.

The projectile has a 4 to 5 second delay ignition element crimped into the

center opening of a metal delay carrier.

The projectile is press-fitted into an O-ring in the front opening of the


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cartridge case. The case is a hollow bi-chambered cylinder with a metal

closing plug crimped into the base of the cartridge case. The propellant cup

is sealed on the bottom by the closing plug. The cup acts as a high-pressure

chamber, and the cavity in the case surrounding the cup acts as a low-

pressure chamber. A percussion primer is crimped into a center opening inthe closing plug.

Functioning:



This pressure ruptures the propellant cup, and the pressure escapes through

the vent holes into the low-pressure chamber, propelling the projectileforward with the velocity required to reach the burst altitude. The burning

propellant also ignites the .5 second delay element in the base of the

projectile.

The rotating band engages the rifling in the launcher tube to impart a spin of

3,750 rpm to the projectile. At the end of the delay, the delay element

ignites the ejection charge. The ejection charge ignites the candle and blows

the candle assembly out through the top of the projectile body.

The attached parachute deploys upon ejection to lower the candle at 7 feet

per second (2 mps). The candle burns for approximately 40 seconds. The

candle functions at an altitude of 500 to 700 feet when fired vertically and is

visible to an air observer at a slant range of at least 3 miles from 3000 feet

altitude.


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M583A1 White

U.S. Army photo

627x477, 65K, JPEG

M661 Green

U.S. Army photo

626x477, 63K, JPEG
http://www.inetres.com/gp/military/infantry/grenade/40mm/40mm_M661.jpghttp://www.inetres.com/gp/military/infantry/grenade/40mm/40mm_M583A1.jpg


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M662 RedU.S. Army photo

627x477, 64K, JPEG

M585 40mm White Star Cluster Cartridge

Complete Round

Type White Star Cluster


Unit Cost $48 (Fiscal Year 2005), $46 (FY 2008)

Length 5.268 in (133.8 mm)
http://www.inetres.com/gp/military/infantry/grenade/40mm/40mm_M662.jpg


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Projectile


Color White with black markings

Filler 85 g illumination composition (each pellet 17 g)

Fuze None

Case Components

Cartridge Case M195



Performance



Arming Range N/A

Average Candlepower 55,000

Burn Time 5 seconds minimumUse:

The M585 cartridge is designed for illumination and signaling with less

weight and bulk and greater accuracy than comparable hand-held signals.

This item is Code A, approved for service use. This is a training standard

item used in both training and combat.

Description:



The projectile has a one piece, hollow aluminum body with a rotating band.

A plastic ogive, embossed with a raised "W" for night identification of

payload color and five raised dots to identify a cluster round, is snapped into

an O-ring in the front opening of the projectile cavity. The cavity contains an


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illuminant candle assembly of five white star charges and a black powder

ejection charge. The star charges are contained in phenolic-coated Kraft

paper and mounted on a base plug of similar material over the ejection

charge. A 5 second delay pyrotechnic ignition charge is fitted into the center

of the projectile base.

The projectile assembly is fitted into the cartridge case. The case is a hollow

bi-chambered cylinder with a metal closing plug crimped into the base of the

cartridge case. The propellant cup is sealed at the bottom by the closing

plug. The cup acts as a high-pressure chamber, and the cavity surrounding

the cup in the cartridge case acts as a low-pressure chamber. A percussion

primer is crimped into a center opening in the closing plug.

Functioning:The weapon firing pin strikes the primer igniting the propelling charge.


The pressure ruptures the propellant cup and the gas pressure escapes

through the vents into the low-pressure chamber.

The expanding gases propel the projectile through the launcher tube with a

muzzle velocity of 76 mps and reaches a burst altitude of 550 feet at a

quadrant elevation of 85. The burning propellant also ignites the delay

element in the base of the projectile. Within 4 to 5 seconds after firing, the

delay element ignites the ejection charge. The ejection charge ignites the

star charges and blows the candle assembly out through the top of the

projectile body.

The individual stars burn for approximately 7 seconds during free fall and

produce 55,000 candlepower.

M585 White Star Cluster

U.S. Army photo

625x477, 60K, JPEG


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M651 Tactical CS Cartridge

Complete Round

Type CS


Unit Cost ?



Projectile


Color Gray projectile with red markings and red band

Filler 57 g CS-pyrotechnic mixture


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Case Components

Cartridge Case ?

Propellant ?

Primer Percussion

Performance


Maximum Accurate Range 656 ft (200 m)



CS Burn Time 20 to 30 seconds

Area Coverage 144 yd (120 m)

Use:

Though it is a multipurpose round, the M651 is most effective for riot control

and in military operations on urbanized terrain (MOUT). This chemical round

is used to drive the enemy from bunkers or enclosed positions in built-upareas. It produces a white cloud of CS gas on impact.

Description:

The M651 cartridge is similar in appearance to other 40mm cartridges but

has a flat nose. Two ridges act as projectile rotating bands when the round is

fired. The cartridge case contains a percussion primer and has six equally

spaced notches located around the cartridge case base. The 1/4 inch wide

red band on the gray projectile indicates that the CS filling is a non-

persistent-effect irritant agent. The round is filled with about 2 ounces (57 g)

of CS pyrotechnic mix containing approximately 0.75 ounces (21 g) of CS.

Effect:

Maximum accuracy is obtained at ranges up to 219 yards (200 m). Area

targets may be engaged up to 437 yards (400 m). This projectile can


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penetrate window glass or up to 3/4 inch (19 mm) thick pine at 656 feet

(200 m) and still release CS. The projectiles will also function against other

materials such as earth, gravel, brush, sandbags, and bamboo. Following

impact, a cloud of CS is emitted for approximately 25 seconds. Area

coverage: approximately 144 square yards (120 square meters). Twocartridges effectively placed will incapacitate 95% of unmasked personnel in

an enclosure of 15 by 30 by 20 feet within 60 seconds after functioning.

Firing the M651 cartridge into water will increase the dud rate and decrease

the amount of CS cloud disseminated. The M651 cartridges are not explosive

rounds; however, a malfunctioning projectile may explode upon target

impact.

M676 40mm Yellow Smoke Canopy CartridgeM680 40mm White Smoke Canopy Cartridge

M682 40mm Red Smoke Canopy Cartridge


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Complete Round

Type Smoke Canopy

ClassificationDate

?

Unit Cost ?

Length 5.212 in (132.4 mm)


Projectile


Color Light green with black markings

Filler Smoke composition. M676: 59 g yellow. M680: 59 g


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white. M682: 80 g red.

Fuze None

Case Components

Cartridge Case M195



Performance



Arming Range N/A

Smoke Burn

Time90 seconds minimum

Use:

This cartridge is designed for accurately marking the position of a man or

unit located beneath moderately thick foliage for aerial observation. The

cartridge has the advantage of less weight and bulk and greater accuracy

than comparable existing signals.

Description:



The projectile is a hollow, one-piece aluminum body with a rotating band. A

plastic ogive is snapped into an O-ring in the front opening of the projectile

cavity. The color of the ogive denotes smoke color. The cavity contains a

pyrotechnic ignition candle and an aluminum canister containing yellow

smoke composition attached to a rotating "X" type parachute. A 2 second

ignition delay element is crimped into the center of the metal delay carrier.

The delay carrier is threaded into the projectile base. A cavity about the

delay element contains an ejection charge pellet consisting of 1.2 grams of

black powder. The igniter and smoke canister are seated above the ejection

charge in the projectile cavity.


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The projectile assembly is press-fitted into an O-ring in the cartridge case

opening. The case is a hollow aluminum bi-chambered cylinder with a metal


is sealed in the bottom by the closing plug. A percussion primer is fitted intothe center of the closing plug. The cup acts as a high-pressure chamber, and

the cavity around the cup in the cartridge case acts as a low-pressure

chamber.

Functioning:



This pressure causes the propellant cup to rupture, forcing the gases to

escape through the vent holes into the low-pressure chamber to propel theprojectile through the launcher barrel with a muzzle velocity of 76 mps and

reaches a burst altitude of 300 feet at a quadrant elevation of 85.

Concurrently, the propellant gases ignite a 2 second delay element in the

base of the projectile.

The rotating band engages the rifling in the launcher barrel to impart a spin

of 3,750 rpm to the projectile. Approximately two seconds after firing, the

delay element ignites the ejection charge. The ejection charge ejects the

smoke canister and parachute assembly out the top of the projectile body

and simultaneously ignites the smoke candle.

The parachute deploys upon ejection. The smoke canister descends emitting

a 90 second smoke signal and becomes entangled in the dense foliage by

means of the "X" type parachute.

M713 40mm Red Smoke Ground Marker Cartridge

M715 40mm Green Smoke Ground Marker Cartridge

M716 40mm Yellow Smoke Ground Marker Cartridge


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Complete Round

Type Smoke Ground Marker


Unit Cost ?



Projectile

Body Material Aluminum

Color Light green with black markings

Filler 75 g smoke composition

Fuze M733 impact pyrotechnic

Case Components

Cartridge Case M118


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Primer FED 100 percussion

Performance



Arming Range 50 - 150 ft (15 - 45 m)

Smoke Burn Time 17 seconds minimum

Use:

These rounds are not for screening. They are used for aerial identification

and for marking the location of soldiers on the ground. The difference among

the models is the color of the smoke.

Description:

The cartridges consist of a cartridge case, a projectile with pyrotechnic

smoke payload, and a pyrotechnic impact fuze.

The projectiles utilize a one-piece aluminum body ogive and a steel base.

The payload consists of a pyrotechnic smoke mixture pressed into the body-

ogive with a cylindrical cavity in the center. The fuze is cemented to the

base of the projectile and protrudes into the cylindrical cavity of the smoke

mixture. The fuze is designed to arm at a minimum of 15 meters and a

maximum of 45 meters from the muzzle of the weapon.

The cartridge case is a dual-chambered aluminum container housing a brass

propellant cup. The propellant cup is held in the case by a crimped base plug

which provides a pressure-type waterproof seal. The base plug houses a

percussion primer.

Functioning:

Upon firing the primer ignites the propelling charge. In turn, the projectile is

accelerated down the launcher barrel where a spin of 3,750 rpm is imparted

by the barrel rifling. A muzzle velocity of approximately 250 fps is attained.

In addition to launching the projectile, the propellant gases ignite the first


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fire mixture of the fuze in the base of the projectile. The first fire mixture

ignites a high-temperature transfer mixture contained in the steel cup. The

transfer mixture burns during the first 15 meters of projectile flight. When

the projectile is between 15 and 45 meters from the launcher muzzle, heat

transfer through the steel cup ignites the delay mixture.

Upon impact, the delay casing breaks and the burning portion flies forward

out of the fuze support, contacting and igniting the pyrotechnic smoke

mixture. Ignition of the smoke mixture causes a buildup of pressure which

dislodges the fuze support at the aft end of the projectile thus allowing

smoke to be emitted at the aft end of the projectile. Projectile impact prior

to the minimum arming distance (15 meters) results in a dud. Between 15

and 45 meters from the launcher muzzle, the fuze may or may not function

on impact. In the event the fuze fails to function upon impact, the outputmixture provided in the front end of the delay casing acts as a backup to the

impact feature. When the flame reaches this point (8 to 10 seconds after

launch) the output mixture flashes and ignites the smoke mixture.


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M781 40mm Practice Cartridge

Complete Round

Type Practice


Unit cost $5 (Fiscal Year 2005), $7 (FY 2010)



Projectile

Body Material Zinc or aluminum

Color Blue with white markings

Filler Orange dye


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Fuze None

Case Components

Cartridge Case M212


Primer Commercial 1-1/2 percussion

Performance



Arming Range N/A

Danger Radius 66 ft (20 m)

Use:

The M781 cartridge is a fixed, practice type ammunition. The M781 replaced

the M407 practice cartridge. This item is Code A, approved for service use.

This is a training unique item; not used in combat.

Description:

This cartridge is a fixed round of ammunition consisting of a metal projectile

body with a rotating band and a cartridge case assembly.

A hollow plastic ogive is filled with a high visibility yellow-orange dye.

The projectile assembly is attached to a cartridge case with an attached

adhesive substance. The case is a hollow bi-chambered plastic cylinder. A .

38 caliber blank cartridge is press-fitted into the base of the cartridge case

and provides the gas pressure needed to propel the projectile through the

launcher barrel.

Functioning:

The weapon firing pin strikes the .38 caliber blank cartridge primer igniting

the propelling charge. The burning propelling charge generates sufficient

pressure to release the expanding propellant gases through the vent hole

into the low-pressure chamber. The rotating band around the projectile


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engages the rifling in the launcher tube imparting a spin of 3,600 rpm to the

projectile.

The pressure created by the expanding propellant gases in the low-pressure

chamber, forces the projectile through the tube with a velocity of 76 metersper second.

Upon impact with the target, the frangible ogive ruptures and releases the

dye causing a puff of yellow-orange smoke which simulates explosive

impact.

M781 Practice

U.S. Army photo

597x478, 48K, JPEG

M992 40mm Infrared Illuminant Cartridge


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Complete Round

Type IR Star Parachute

Classification Date February 96

Unit Cost $94 (Fiscal Year 2010)

Length 5.272 in (133.9 mm)


Projectile


Color White with black markings, orange band

Filler 50 g Illumination composition


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Fuze None

Case Components

Cartridge Case M195



Performance

Burst height 600 ft (183 m)


Arming Range N/A

Maximum Visible Candlepower 350

Burn Time 30 seconds minimum

Use:

The M992 infrared illuminant cartridge will enhance night visibility while

using night vision devices. This item is Code A, approved for service use.

Description:



The projectile has a one-piece, hollow aluminum body with a metal rotating

band. A plastic ogive, embossed with a raised letter for night identification of

payload, is snapped into an O-ring in the front opening of the projectile

cavity. The cavity contains a pyrotechnic flare candle assembly, and an

integral ignition/ejection charge attached to a 20 inch diameter parachute.

The projectile has a 4 to 5 second delay ignition element crimped into the

center opening of a metal delay carrier.

The projectile is press-fitted into an O-ring in the front opening of the

cartridge case. The case is a hollow bi-chambered cylinder with a metal


is sealed on the bottom by the closing plug. The cup acts as a high-pressure

chamber, and the cavity in the case surrounding the cup acts as a low-


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pressure chamber. A percussion primer is crimped into a center opening in

the closing plug.

Functioning:

The weapon firing pin strikes the primer igniting the propelling charge.Gases from the burning propellant expand in the high-pressure chamber.

This pressure ruptures the propellant cup, and the pressure escapes through

the vent holes into the low-pressure chamber, propelling the projectile

forward with the velocity required to reach the burst altitude. The burning

propellant also ignites the 5 second delay element in the base of the

projectile.

The rotating band engages the rifling in the launcher tube to impart a spin of

3,750 rpm to the projectile. At the end of the delay, the delay elementignites the ejection charge. The ejection charge ignites the candle and blows

the candle assembly out through the top of the projectile body.

The attached parachute deploys upon ejection to lower the candle at 7 feet

per second. The candle burns for approximately 40 seconds. The candle

functions at an altitude of 500 to 700 feet when fired vertically.


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M1006 40mm Non-Lethal (Sponge Grenade) Cartridge

Complete Round

Type Non-Lethal

Classification Date April 1999

Unit Cost $23 (2003)



Projectile

Ogive Material Foam rubber

Ogive Color Green

Body Material High density plastic


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Body Color Black

Filler None

Fuze None

Weight 0.06 pounds (0.0285 kg)

Case Components

Cartridge Case M212

Propellant 130 mg Winchester mix

Primer Percussion

Performance

Engagement Range 33 - 164 ft (10 - 50 m)

Muzzle Velocity 265 20 fps (81 6 mps)

Arming Range N/A

Use:

The M1006 is used to incapacitate personnel without penetrating the

person's body. It is used for riot control, policing and peace keeping

situations. This round is most effective against individually selected targets

(point round). Do not skip fire this round! Round becomes unpredictable

upon striking the ground. This item is Code A, approved for Service use.

Description:


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The projectile has a foam rubber nose and a high density plastic body.

The projectile assembly is attached to the cartridge case by an adhesive.

The cartridge case is a hollow bi-chambered plastic cylinder. Into the base of

the cartridge case is pressed an aluminum insert which holds a brass 32

caliber case. The brass case holds the propellant and primer.

Functioning:

The weapon pin strikes the primer igniting the propelling charge. The

burning propelling charge generates sufficient pressure to release the

expanding propellant gases through the vent hole into the low-pressure

chamber.


tube imparting a spin of 3,600 rpm to the projectile. The pressure, created

by the expanding gases in the low-pressure chamber, forces the projectile

through the tube with a velocity of 265 feet per second.


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Upon impact with an individual, force is generated to incapacitate without

causing a fatality.

Effect:

Fatal injuries are possible at employment distances of less than 10 meters.Beyond 50 meters, the kinetic energy dissipates to the point where the

round becomes ineffective.

M1029 40mm Crowd Dispersal Cartridge

Complete Round

Type Non-Lethal

Classification Date May 2001

Unit Cost $17 (Fiscal Year 2008)


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Projectile

Body Material N/A

Color White cap

Filler 48 black hard rubber 48-caliber balls

Fuze None

Case Components

Cartridge Case ?

Propellant 0.58 g

Primer Percussion

Performance

Maximum Range 328 ft (100 m)

Effective Range 50 - 100 ft (15 - 30 m)

Muzzle Velocity 375 25 fps (114 8 mps)

Arming Range N/AUse:

The M1029 Crowd Dispersal Cartridge (CDC) is used to incapacitate

personnel without any penetrations to the individual's body. It is used for

riot control, policing, and peace keeping situations. This direct fire, low-

hazard, non-shrapnel-producing, multiple ball projectile provides friendly

forces the capability to conduct crowd control. The CDC uses non-lethal,

blunt trauma to stop, confuse, disorient, and/or temporarily incapacitate

personnel and increase standoff distance between friendly forces and the

hostile crowd. Primarily designed as an area effect munition, the CDC can be

used on individuals.

Description:

The CDC is an aluminum cartridge of similar proportions to standard 40mm

illuminant cartridges, but with no separate cartridge case. A fiberboard


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Documents

40mm Low-Velocity Grenades