Power Point presentation. 2010, - 22 p.
There is increasing interest in M16-type weapons having progressively shorter barrels to make highly maneuverable entry weapons. As barrel lengths decrease, weapon reliability decreases while sound and flash increase.Contents:
Barrel length and bore pressure.
Bore pressure and S.P.L.
S.P.L. and barrel length.
Barrel length and velocity.
Conclusions.
