Patronierte Munition

摘要

The proposed fixed ammunition comprises a projectile (11) and a cartridge case (10) which holds it. A cartridge (12) inside the cartridge case (10) encloses a high-pressure chamber (21) containing a propellant charge (14). The cartridge (12) is surrounded by a low-pressure chamber (10a) defined by the inner walls of the caratridge case (10) and part of the base of the projectile (11). On the rear-end side of the projectile (11), a tracer charge (11b) is contained in a tube (27) which protrudes through the upper wall of the cartridge (12) into the high-pressure chamber (21). Projectile and cartridge case are joined via a breaking line (12d). Pressure to expel the projectile (11) from the cartridge case is provided by the pressure in both the high-pressure chamber (21) and the low-pressure chamber (10a). When the projectile is expelled, extraction of the tracer charge from the high-pressure chamber (21) increases the volume of the latter. These measures prevent steep pressure peaks in the pressure curve when the projectile is expelled. At the same time, virtually the entire projectile volume is available for an effective charge.