Rifle Shot Upgrading By Using Model Paste-like Propellant.

As it was shown earlier in the authors works, powder propellant charge modernization is possible by using paste-like propellants as an upper semi-charge, used as a travelling charge to push the projectile in the barrel. Advantages of this technology is to increase a loading density and a propellant charge mass, and, consequently, to increase propellant charge energy. The use of this technology leads to a redistribution of the energy of combustion products in the projection space. In this paper, there is carried out a theoretical parametric study of the muzzle bullet velocity increasing possibility while maintaining maximum pressure using model paste-like propellants, under conditions of a Mosin rifle shot. Theoretical results obtained and analyzed. A comparison is carried out on the ballistic shot parameters of a classical loading scheme and a scheme with a combined propelling charge using model pasty propellants. [ABSTRACT FROM AUTHOR]