CHARGE FROM SPHERICAL GUNPOWDER FOR HUNTING CARTRIDGE 7,62×51 (308Win) Russian patent published in 2013 - IPC C06B25/00 F42B5/16 

FIELD: chemistry.

SUBSTANCE: invention relates to field of development of cartridges for small arms, in particular, to charge for hunting cartridge 7.62×51 (308 Win). Charge consists of spherical gunpowder with size of particles 0.315-0.8 mm. Charge is placed into encapsulated case with bullet. Charge is made from spherical gunpowder elements, which consist of nitrocellulose with content of nitrogen oxide 210.5-213.0 ml NO/g. 20.0-30.0 wt % of colloxyline "NH", 13.0-20.0 wt % of nitroglycerine, 0.1-0.3 wt %, centralite II, 0.5-1.1 wt % diphenylamine, with bulk density 0.960-0.990 kg/dm³, retarded from surface 4.0-7.0 wt % centralite I and 1.5-3.0 wt % of dinitrotoluene, graphitised from surface 0.1-0.3 graphite, with content of moisture 0.2-0.9 wt % and 0.1-0.9 wt % of ethylacetate.

EFFECT: invention ensures obtaining stable ballistic characteristics for hunting cartridge 7,62×51 (308 Win) by speed and dispersal of bullet flight and by pressure of gunpowder gases in rifle barrel bore.

1 dwg, 1 tbl, 5 ex