ARTILLERY SMALL-CALIBER CARTRIDGE Russian patent published in 2003 - IPC

FIELD: cartridges for automatic guns. SUBSTANCE: the cartridge has a shell fixed in a case filled with powder, in who fuse cavity of the fire-transmitting channel a percussion primer is installed. The output of the fire-transmitting channel is provided with a throttle made in the form of a through hole, whose diameter makes up 0.4 to 0.6 of the diameter of the fire-transmitting channel. EFFECT: simplified construction of the artillery small-caliber cartridge for automatic weapon and enhanced efficiency of its main action and functional reliability, prevented surges of pressure in the bore by providing a stability of inflammation of the propellant charge from the center in volume and over the entire length of the case, guaranteed relative axial motion of the percussion primer. 2 cl, 2 dwg