METHOD OF PRODUCING PYROXYLINE PELLET POWDER FOR 7,62 MM SPORT CARTRIDGE Russian patent published in 2016 - IPC C06B25/18 C06B21/00 

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to production of spherical gun powders (SGP) for small arms. Production of powder comprises filling reactor with water, loading while stirring nitrocellulose with nitrogen oxide content of 212.7-214.0 ml NO/g, up to 30 wt% recyclable non-process wastes after wet sorting and from 3.0 to 5.0 wt% of process wastes after dry sorting of pellet powder from previous operations, loading diphenylamine and mixing. Then solvent-ethyl acetate is poured and powder lacquer is prepared. After adding a protective colloid - leather glue, crushing of powder lacquer to spherical particles is performed. Sodium sulphate is added and ethyl acetate is distilled from powder elements.

EFFECT: method provides effective use of coarse and fine fraction of powder in process and prevents recycling by burning and provides stable physical and chemical and ballistic characteristics in a 7,62 mm sport rifle cartridge.

1 cl, 1 tbl, 5 ex