"WASP" BULLET AND CARTRIDGE FOR SMOOTH-BORE WEAPON Russian patent published in 2012 - IPC F42B30/02 

FIELD: weapons and ammunition.

SUBSTANCE: bullet comprises a head damage part and a tail stabilising part. The head damage part is made of a solid lead alloy in the form of serially coupled hemispherical head fairing and a cylindrical bullet body. The tail stabilising part is made of plastic in the form of a thin narrowing rod with a long cone and a cross-like stabiliser at the end. Connection of the head and tail parts between each other into a single whole is arranged by means of a tightening self-threading screw. The total bullet length makes 3.75-4.5 of the diameter of the cylindrical section of the bullet body head part. The bullet head part length makes 1.5-2 of the diameter of the cylindrical section of the bullet body head part. The maximum diameter of the head part makes 0.6-0.8 of the barrel channel diameter. The swing of the stabiliser empennage blades makes 1.3-1.5 of the head part diameter, but it does not exceed the value of 0.98 of the barrel channel choke diameter. The maximum diameter of the cylindrical section of the tail part rod in the area of adjacency of the tail part to the head part does not exceed 0.65 of the head part diameter. The sweep angle of the front edge of stabiliser blades makes 30-45°. The slant angle of the front edge of stabiliser blade makes 16-20°. A cartridge comprises an ignition facility, a powder charge and a missile equipped with a support-obturator system and a subcalibre bullet placed in the case. The missile in the cartridge is a tray with the above subcalibre bullet.

EFFECT: improved accuracy and closer grouping of combat.

2 cl, 3 dwg