SMALL ARMS CARTRIDGE WITH INCREASED STOPPING EFFECT Russian patent published in 2021 - IPC F42B5/02 F42B12/02 F42B12/24 F42B12/34 

FIELD: weaponry.

SUBSTANCE: invention relates to small arms cartridges with increased stopping effect. The cartridge contains a sleeve with a primer-igniter, a propellant charge and a bullet with a head part made in the form of a truncated cone, including a shell in the form of a glass with corrugated knurling and with internal folds in the nose, as well as with a core of heavy plastic material placed in it. cavity located on the side of the spout. Corrugated knurling is located from the tail of the bullet at a distance of 0.4-0.5 of its caliber and is made with a width of 1.5-2.0 mm. The bullet additionally includes a smooth knurling with a width of 1.0-1.5 mm, located on the side of the nose at a distance of 0.1-0.2 caliber from the corrugated knurling with the possibility of ensuring its coincidence with the cut of the sleeve, while the cavity of the smooth knurling is limited, at least with a cut of the sleeve, filled with a varnish-sealant. The core is located at a distance of 1.5-2.5 mm from the bullet nose, and its cavity is made open, and the shell folds in the bullet nose are located 1.5-2.5 mm from its nose and make an angle of 10°-15° to the generatrix of the cone. The core is made of a lead-based alloy with an antimony content of 1.5-2.0% and is located at a distance of 1.5-2.5 mm from the bullet nose, and its cavity is made open. The folds of the shell in the nose of the bullet are located at a length of 1.5-2.5 mm from its nose and make an angle of 10°-15° to the generatrix of the cone. The hardness of the bullet shell is in the range of 120-150 units on the Vickers scale.

EFFECT: reducing the likelihood of a bullet ricochet when firing and eliminating bullet fragmentation when meeting an obstacle.

1 cl, 5 dwg, 1 tbl, 6 ex