Round of rifle ammunition and method for making same

F - Mech Eng,Light,Heat,Weapons – 42 – B

Patent

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Details

F42B 5/02 (2006.01) F42B 5/045 (2006.01) F42B 5/10 (2006.01) F42B 5/18 (2006.01)

Patent

CA 2396612

A round of gun ammunition (12) including a projectile (40) adapted to be propelled from the gun at a subsonic velocity. The round includes a case (14) containing a quantity of gun powder (38) therein, but not filling the case. A projectile (40) projects into the body portion (20) of a case (14) to a location proximate the gun powder. A disc (50) having a circumference substantially matching the inner circumference of the body portion (20) of the case at the level (52) of the gun powder within the case is interposed between the gun powder and the proximal end (56) of the projectile (40) within the case to provide a barrier against movement of gun powder toward the open end (18) of the case (14). In one embodiment, a further disc (80) is interposed between the disc (50) and the proximal end (56) of the projectile (40) to filter out gun powder particles which may escape past the barrier disc (50). A method for the manufacture of the round of gun ammunition is disclosed.

Ce coup complet (12) pour fusil comprend un projectile (40) conçu pour être propulsé du fusil à une vitesse subsonique, ainsi qu'une douille (14) contenant une certaine quantité de poudre (38), cette quantité ne remplissant cependant pas toute la douille. Le projectile (40) pénètre dans la portion de corps (20) de la douille (14) jusqu'à un emplacement situé à proximité de la poudre. Dans la douille, on a interposé, entre la poudre et l'extrémité proximale (56) du projectile (40), et au niveau (52) de la poudre placée dans la douille, un disque (50) dont la circonférence correspond sensiblement à la circonférence intérieure de la portion de corps (20) de la douille, de manière à constituer une barrière empêchant tout déplacement de la poudre vers l'extrémité ouverte (18) de la douille (14). Dans un autre mode de réalisation, on a interposé un autre disque (80) entre le disque (50) et l'extrémité proximale (56) du projectile (40) afin de filtrer toutes les particules de poudre qui pourraient s'échapper et passer au-delà du disque (50) formant barrière. L'invention concerne encore un procédé de fabrication de ce coup complet.

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