SHOT CARTRIDGE Russian patent published in 1998 - IPC

FIELD: smoothbore gun fire. SUBSTANCE: one-piece cast plastic cartridge case 1 has a central hole in the bottom part. Reinforcing member 3 made in the form of a sleeve, whose height makes up part of the cartridge case bottom height, or in the form of a disk is installed in misalignment with the hole. One generating line of the inner surface of the reinforcing member comes out to the hole surface. The inside diameter of reinforcing member 3 exceeds the diameter of the central hole. EFFECT: improved design. 3 cl, 2 dwg