A Note On Piezometric Efficiency In An Orthodox Gun

Abstract

It has been shown that the muzzle velocity and the piezometric efficiency both may be increased for a suitable composite charge in comparison with those of the single charge. The condition stipulated is that the length of the gun should be sufficiently large in comparison to the initial free space behind the shot. The composite charge considered here consists of two components such that the pressure driving the shot remains absolutely constant throughout the period when the second component burns.