Effectiveness of a recoil reducer

Effectiveness of a Recoil Reducer

Project Inspiration

Mercury Recoil Reducer

Spring Recoil Reducer

Foam Recoil Pad

Experiment Design

Reducer Assembly

Reducer Installation

Experiment Apparatus

Experimental Setup

No Reducer

Max: 257 ± 39 gMin: -195 ± 18 gSpan: 453 ± 29 g

-250

-200

-150

-100

-50

0

50

100

150

200

250

Time (s)

Acce

lera

tion

(g)

15 Washers (minimal weight)

79 grams

Max: 302 ± 15 gMin: -158 ± 7 gSpan: 460 ± 12 g-200

-100

0

100

200

300

400

Time (s)

Acce

lera

tion

(g)

30 Washers

158 grams

Max: 315 ± 17 gMin: -150 ± 5 gSpan: 465 ± 15 g

-200

-100

0

100

200

300

400

Time (s)

Acce

lera

tion

(g)

40 Washers (maximum weight)

210 grams

Max: 258 ± 46 gMin: -168 ± 10 gSpan: 426 ± 54 g

-200

-150

-100

-50

0

50

100

150

200

250

Time (s)

Acce

lera

tion

(g)

30 Washers (alternate spring)

Max: 296 ± 15 gMin: -147 ± 9 gSpan: 443 ± 19 g

-200

-100

0

100

200

300

400

Time (s)

Acce

lera

tion

(g)

Summary of Results

No Reducer 15 Washers 30 Washers 40 Washers Alternate

Max (g) 257 ± 39 302 ± 15 315 ± 17 258 ± 46 296 ± 15

Min (g) -195 ± 18 -158 ± 7 -150 ± 5 -168 ± 10 -147 ± 9

Span (g) 453 ± 29 460 ± 12 465 ± 15 426 ± 54 443 ± 19

ConclusionsThe acceleration curve did not spread out

The acceleration max value was not reduced

Ineffective at reducing felt recoil

Anecdotally it kicked more

Suggested Improvements

Instrument rifleLubricate current configurationPut springs in tensionDamper (screen door closer)Liquid (mercury)Particles (lead shot or sand)