Dater P.H., Wong J.M., Effects of barrel length on bore pressure, projectile velocity and sound measurement

PowerPoint 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.Barrel length and bore pressure.
Bore pressure and S.P.L.
S.P.L. and barrel length.
Barrel length and velocity.
Conclusions.