PROJECTILE-2 /VERSIONS/ Russian patent published in 2016 - IPC F42B1/00 

FIELD: weapons and ammunition.

SUBSTANCE: group of inventions refers to ammunition, particularly to propellant bodies. Propellant body consists of pipe with inner surface. Inner surface comprises confuser and diffuser and, optionally, central body and wad. Between confuser and diffuser there is cylindrical section. In another version, pylons central body are arranged along tangent to central body in direction of rifles, or in intermediate direction between tangent and radius. In another version, central body has section, flowing from behind from round to faceted. Wad is made with recess and corresponding in form to faceted part. Wad has driving band for its swirling in weapon barrel rifles.

EFFECT: lower drag.

7 cl, 3 dwg