POROUS SPHERICAL POWDER FOR 12-GAUGE SHOT CARTRIDGES FOR SMOOTH-BORE WEAPONS Russian patent published in 2023 - IPC C06B25/24 

FIELD: ammunition.

SUBSTANCE: invention relates to the production of porous spherical powder for 12-gauge shot cartridges for smooth-bore weapons with a shot weight of 36 g. Spherical powder for loading 12-gauge shot cartridges for smooth-bore weapons with a shot weight of 36 g contains pyroxylin with a volumetric concentration of nitrogen oxide of at least 212.5 ml NO/g, nitroglycerin, diphenylamine, bound graphite, ethyl acetate, moisture. Volumetric combustion inhibitor - centralite I and dinitrotoluene are evenly distributed throughout the grain volume. The ratio of powder components is as follows, wt.%: nitroglycerin from 2.0 to 4.0, diphenylamine from 0.6 to 1.0, bound graphite from 0.1 to 0.4, ethyl acetate no more than 1.1, moisture from 0 .2 to 0.6, centralite I from 0.9 to 1.2, dinitrotoluene from 2.5 to 3.0, pyroxylin with a volumetric concentration of nitrogen oxide of at least 212.5 ml NO/g - the rest. The optimal value of the powder charge mass is 1.8-2.2 g, for a cartridge with a shot projectile mass of 36 g, as well as the requirements for ballistic characteristics for the average flight speed of a shot projectile of at least 320 m/s and the maximum average pressure of powder gases of no more than 61.5 MPa.

EFFECT: new powder production.

1 cl, 1 tbl