Patent ID: 8887641
Filing Date: 2014-11-18
Classification: F42B

Abstract:
1. A 40 mm ammunition projectile for firing without significant spin in an M203 or an M320 grenade launcher, the projectile comprising: a projectile cup; a cylinder shaped spacer surrounded by a ring shaped spacer, wherein the cylinder shaped spacer and the ring shaped spacer are disposed inside the projectile cup an obturator; a projectile body having hollow inner cavity; a projectile fin assembly; a projectile nose element having a conically shaped front area thereon; an explosive payload loaded in cavity of said projectile body; a projectile sabot enclosing said body, said sabot comprising two or more joining sabot petals; a break ring; a cartridge case; vent holes in said cartridge case; copper closure cup for placement in a bowl area of said cartridge case, said copper closure cup containing propellant, and; a closure plug for threading into the rear of said cartridge case.