Effect of 5.56 mm Primer Components on Ballistic Performance of the M16A1 Rifle/Ammunition System
Technical research rept.
FRANKFORD ARSENAL PHILADELPHIA PA
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As a result of previous testing at Frankford Arsenal, it was decided to conduct more extensive testing of 5.56 mm primers. A factorially designed experiment was conducted to determine the effects of these primers on interior ballistics for both ball and tracer ammunition. The primer mixture, the primer weight, and the conditioning temperature of the ammunition were varied to investigate their effects, individually and in conjunction with each other, on the cyclic rate of the M16 rifle, on the action time of the ammunition in the rifle, and on the velocity of the projectile. The results of this test show that within the limits tested, primer components did effect ballistic performance, but to a lesser degree than external factors such as the rifle used and the conditioning temperature of the ammunition.
- Ammunition and Explosives