CHARGE FOR GAS AND DUMMY 5,6 MM-CARTRIDGES OF ANNULAR IGNITION Russian patent published in 2013 - IPC C06B25/22 

FIELD: weapons and ammunition.

SUBSTANCE: said charge is made of spherical powder elements consisting of mollite containing nitrogen oxide in amount of 212.0…213.5 ml NO/g, 0.4…0.8 wt % of diphenylamine, 0.3-0.7 wt % of graphite and carbon, 0.2…1.0 wt % of ethyl acetate, 0.4-0..8 wt % of moisture, with bulk density of at least 0.684-695 kg/dm³, at the following ratio of components: weight fraction of powder after minus 0.315 sieve and plus 0.2 sieve- not over 0.80, weight fraction of coarse grains after plus 0.2 sieve and minus 0.315 sieve - not over 20.

EFFECT: complete combustion of powder charge in rifle bore and complete elimination of unburnt powder particles behind said bore.

1 tbl, 5 ex