The present invention provides a diffuser cup adapted to fit a primer recess in an ammunition cartridge comprising: a diffuser ring sized to fit in a primer recess for an ammunition cartridge comprising a diffuser top surface opposite a diffuser bottom surface, a diffuser aperture positioned through the diffuser top surface and the diffuser bottom surface such that the diffuser aperture can align with a flash hole, a diffuser neck positioned about the diffuser aperture to extend away from the diffuser top surface, wherein the diffuser neck is sized to fit at least partially through the flash hole; a ring connected to the diffuser neck, wherein the ring comprises a ring aperture connected to the diffuser neck to align the ring aperture and the diffuser aperture; and a cup wall attached to the diffuser ring to extend away from the diffuser bottom surface, wherein the cup wall is configured to frictionally fit a primer and frictionally fit a primer recess.

The invention relates to a shotgun cartridge comprising a case (12) of internal diameter d.sub.INT and a base (14) with a primer (16), the powder (18), a wad (22) and the shot (24), as well as an obturator (20) arranged between the powder (18) and the wad (22), characterized in that the obturator (20) is made of biodegradable material with plastic deformation properties, and comprises a central disk (25) and ribs (26) together forming a one-piece element with the disk, the assembly having an outer diameter d.sub.EXT, the ribs (26) comprising upper ribs (27) and lower ribs (28), these ribs (26) forming a non-zero angle with the plane of the disk (25), the obturator having a nominal outer diameter d.sub.EXT, the ribs being able to take at least one other position in which said ribs (26) are in the plane of the disk (25), the outer diameter being D.sub.EXT. The invention also concerns a method for producing a shotgun cartridge.

One embodiment of the present invention provides a stamped metal primer insert for a polymeric ammunition cartridge comprising: a top surface having a stamped flange that extends circumferentially about an outer edge of the top surface; a stamped coupling element that extends from the flange to a coupling tip; a stamped inner coupling element from the coupling tip to a bottom surface, wherein the bottom surface is opposite the top surface; a stamped primer recess in the top surface that extends toward the bottom surface; a primer flash aperture in the primer recess through the bottom surface; and a groove stamped in the primer recess around the primer flash aperture adapted to receive a polymer overmolding.

One embodiment of the present invention provides a stamped metal primer insert for a polymeric ammunition cartridge comprising: a top surface having a stamped flange that extends circumferentially about an outer edge of the top surface; a stamped coupling element that extends from the flange to a coupling tip; a stamped inner coupling element from the coupling tip to a bottom surface, wherein the bottom surface is opposite the top surface; a stamped primer recess in the top surface that extends toward the bottom surface; a primer flash aperture in the primer recess through the bottom surface; and a groove stamped in the primer recess around the primer flash aperture adapted to receive a polymer overmolding.

The present invention provides a single piece polymer ammunition cartridge and polymer ammunition and methods of forming a single piece polymer ammunition cartridge and polymer ammunition.

The present invention provides a single piece polymer ammunition cartridge and polymer ammunition and methods of forming a single piece polymer ammunition cartridge and polymer ammunition.

Development of different inorganic materials, having the capacity to generate visible colors when excited in the infrared region, which can be used to determine the origin of explosives, fuses and ammunition, even after detonation, and in weapons and metal projectiles, thus serving as a safety marking tool thereof. The following were developed: LaNbO.sub.4 (called Mark1), BiVO.sub.4, Sr.sub.3V.sub.2O.sub.8 and YNbO.sub.4 (called Mark2), doped with different rare earth ions (erbium, ytterbium, holmium and thulium). The markers were physically inserted inside the explosives and in the gunpowder and by carburizing and forging in steel or metal alloy, with which the weapon or metal projectile is manufactured. The parameter used to demonstrate the presence of the markers in the products, after detonation or scraping of the weapon, was the verification of the color identity of the marker fluorescence, before and after, via laser in the infrared region.

Development of different inorganic materials, having the capacity to generate visible colors when excited in the infrared region, which can be used to determine the origin of explosives, fuses and ammunition, even after detonation, and in weapons and metal projectiles, thus serving as a safety marking tool thereof. The following were developed: LaNbO.sub.4 (called Mark1), BiVO.sub.4, Sr.sub.3V.sub.2O.sub.8 and YNbO.sub.4 (called Mark2), doped with different rare earth ions (erbium, ytterbium, holmium and thulium). The markers were physically inserted inside the explosives and in the gunpowder and by carburizing and forging in steel or metal alloy, with which the weapon or metal projectile is manufactured. The parameter used to demonstrate the presence of the markers in the products, after detonation or scraping of the weapon, was the verification of the color identity of the marker fluorescence, before and after, via laser in the infrared region.

An attachment assembly includes a conically tapered missile body interface surface of a missile body attachment interface wedged against a conically tapered missile component interface surface of a missile body attachment interface. The missile body attachment interface also includes an engagement rod for locked engagement by a hook of the missile component attachment interface. Specifically, the missile component attachment interface includes an auto-adjusting assembly having a series of pivoting arms connected to a rotatable engagement drive at a first end thereof and a hook at a second end thereof. The auto-adjusting assembly is moveable between a first position and a second position, and between the second position and a third position. The missile component attachment interface includes a pre-loaded over-center mechanism operably coupled to the auto-adjusting assembly and configured to lock the hook in engagement with the engagement rod in the third position.

As described above, this new primer feed system is both accurate and consistent. The primer feed station begins by loading primers from the vendor packaging into the vibratory feed bowl via the primer chute. The bowl has an adjustable height polycarbonate guard that is inside the main safety polycarbonate doors and exits above the machine. The bowl then orients the primers open side up and discharges them into the primer track. Crimping can be done with 3 or pins or a complete radial crimp. Previous versions of the crimp station on these crimping machines involved a pin mounted to the upper ram and a lower pin actuated by the lower ram. It was difficult to time and adjust properly for a consistent crimp. This new approach to crimping has proved much more reliable, accurate and easier to adjust. It still utilizes an upper pin mounted to the upper moving ram assembly but the lower pin is fixed.