CARTRIDGE Russian patent published in 2014 - IPC F42B5/02 F42B12/00 

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to ammunition, particularly to cartridges for firearm. The cartridge comprises a shell, a cap primer, a projectile and a bullet. The bullet has a casing with a core located in it made of heavy plastic material, covering the core of resilient non-metallic material. In the bullet the third core is placed, made of highly rigid material which is located on the axis of the bullet on its entire length. The ogive part of the third core is made with the optimal taper angle on armour penetration. Two cores cover the third one along the outer surface, interconnecting on the conical surface with widening in the direction of the bullet head part. The core of heavy plastic material is located in the bottom and middle part of the bullet. The core of resilient non-metallic material is located in the front part. The casing may cover all three cores, and its ogive part is made with optimal aerodynamic radii of bypass.

EFFECT: increase in armour penetration action of bullet is achieved.

2 dwg