| 主权项 |
1. A polymeric ammunition cartridge having wicking texturing comprising:
a substantially cylindrical primer insert comprising a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface, wherein the substantially cylindrical coupling element forms an outer surface opposite an inner circumferential surface, a primer recess in the top surface that extends toward the bottom surface, a primer flash aperture positioned in the primer recess to extend through the bottom surface, and a locking groove that extends circumferentially about the top surface; a substantially cylindrical polymeric middle body extending from the substantially cylindrical primer insert to a cylindrical middle body coupling region, wherein the first polymer is molded over the locking groove, the inner circumferential surface and the outer surface and extends to the cylindrical middle body coupling region; a textured middle body surface on the cylindrical middle body coupling region; a substantially cylindrical polymeric projectile end mated to the substantially cylindrical polymeric middle body molded from a second polymer, wherein the substantially cylindrical polymeric projectile end comprises a projectile end coupling region that extends to a shoulder region that reduces to a neck region having a projectile aperture wherein the projectile end coupling region couples to the textured surface; a propellant chamber defined between the primer flash aperture and the projectile aperture; and a textured projectile aperture surface about an inner surface of the projectile aperture, wherein the textured projectile aperture surface couples the projectile to the projectile aperture. |
