PELLET POWDER FOR PROPELLANT CHARGE FOR 9×19 mm PISTOL CARTRIDGE WITH STELL CORE BULLET Russian patent published in 2014 - IPC C06B25/22 

FIELD: chemistry.

SUBSTANCE: invention relates to production of pellet powder for small arms, particularly for propellant charge for a 9×19 mm pistol cartridge with a steel core bullet. The powder contains pyroxylin, nitroglycerine, diphenylamine, centralite II, graphite, ethyl acetate and moisture. The starting material used is pyroxylin with nitrogen oxide content of 212.8-213.8 ml NO/g, packed density of the powder of 0.960-0.990 kg/dm³, with average diameter of the powder elements of 0.25-0.55 mm and average thickness of the burning vault of 0.12-0.25 mm.

EFFECT: invention increases bullet flight speed, reduces variance of the bullet flight speed and increases stability of powder pressure in the bore for propellant powder for a 9×19 mm pistol cartridge with a steel core bullet.

1 tbl, 5 ex