CHARGE FOR 5,6 mm SPORTING RIFLE RIM-FIRE CARTRIDGE Russian patent published in 2012 - IPC C06B25/20 F42B5/16 

FIELD: weapons and ammunition.

SUBSTANCE: charge contains spherical powder made from nitrocellulose with content of nitrogen oxide 209…210.5 ml NO/g, carbon, diphenylamine and ethyl acetate, with apparent density of 0.600…0.850 kg/dm³ and size of 0.4…0.2 mm from particles moderated from surface with 2.0…4.0 wt % dibutyl phthalate and 0.5…1.0 wt % dinitrotoluene, coated with 0.2…0.4 wt % of graphite, with moisture content of 0.2…0.6 wt % and ethyl acetate 0.3…1.2 wt % at the following mass ratio of particle fractions, %: 0.2…0.4 mm - at least 80; less than 0.2 mm and more than 0.4 mm - not more than 20.

EFFECT: increased initial speed of bullet velocity and provision of stable performance of a powder charge.

1 dwg, 1 tbl