SILENT CLEANING CARTRIDGE FOR SMALL ARMS Russian patent published in 2022 - IPC F42B5/24 F42B14/04 

FIELD: weapons.

SUBSTANCE: invention relates to weapons, namely to small arms ammunition. A cleaning cartridge for small arms contains a bottle-type cartridge case with an igniter primer, a piston with the possibility of locking powder gases in the cartridge case, and a mechanical pusher of a thrown cleaning caliber projectile. The thrown cleaning projectile is made as a coil due to at least two annular grooves spaced as far as possible along its length. The cavities of the grooves are blocked by the crimped muzzle of the sleeve. The front groove is filled with cleaning fluid and the rear groove is filled with lubricating fluid. Sections of the caliber cylindrical surface of the projectile, separated by grooves, are made with unequal surface roughness and, accordingly, unequal abrasive properties in relation to powder deposits in the bore.

EFFECT: ensuring prompt cleaning and improving the quality of cleaning and finishing lubrication of the barrel bore at the same time with the noiselessness of the cartridge during its use.

1 cl, 3 dwg