CARTRIDGE CASE Russian patent published in 2005 - IPC

FIELD: ammunition, in particular design of cartridge cases, applicable in production of seamless steel cartridge cases of small arms.

SUBSTANCE: the cartridge case a body, whose inner surface is conjugated to the bottom in radius and made in the form of tapered sections, the thickness of the body wall at height h=0.30-0.53H from the line of conjugation of the radius to the body inner surface corresponds t=0.08-0.20T, where t = the thickness of the body wall in the critical section, H - the total height of the tapered sections, T-the thickness of the cartridge case bottom.

EFFECT: improved extraction of steel seanless cartridge cases for cartridges of small arms due to optimization of the thickness of the cartridge case body wall in the most critical section.

1 dwg