A reduced-energy cartridge for a chamber of a firearm includes a case and a sabot. The sabot is moveably attached to the case and supported for movement relative to the case from an unfired position to a fired position resulting from combustion within the combustion chamber. The cartridge further includes a sealing member that projects radially outward from the longitudinal axis and from the sabot. The sealing member defines a blowback boundary where the cartridge is configured to seal against an inner surface of the chamber of the firearm. A forward area of the cartridge and a rear area of the cartridge are separated by the blowback boundary. The sealing member is configured for releasably sealing against the inner surface of the chamber to regulate pressure at the forward area resulting from combustion within the combustion chamber.
F42B 12/76 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing
2.
REDUCED-ENERGY CARTRIDGE WITH EXTERIOR SEALING MEMBER FOR FLUTED CHAMBER
A reduced-energy cartridge for a chamber of a firearm includes a case and a sabot. The sabot is moveably attached to the case and supported for movement relative to the case from an unfired position to a fired position resulting from combustion within the combustion chamber. The cartridge further includes a sealing member that projects radially outward from the longitudinal axis and from the sabot. The sealing member defines a blowback boundary where the cartridge is configured to seal against an inner surface of the chamber of the firearm. A forward area of the cartridge and a rear area of the cartridge are separated by the blowback boundary. The sealing member is configured for releasably sealing against the inner surface of the chamber to regulate pressure at the forward area resulting from combustion within the combustion chamber.
F42B 14/06 - Sub-calibre projectiles having sabots; Sabots therefor
F42B 12/76 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing
A reduced-energy cartridge for a chamber of a firearm includes a case and a sabot. The sabot is moveably attached to the case and supported for movement relative to the case from an unfired position to a fired position resulting from combustion within the combustion chamber. The cartridge further includes a sealing member that projects radially outward from the longitudinal axis and from the sabot. The sealing member defines a blowback boundary where the cartridge is configured to seal against an inner surface of the chamber of the firearm. A forward area of the cartridge and a rear area of the cartridge are separated by the blowback boundary. The sealing member is configured for releasably sealing against the inner surface of the chamber to regulate pressure at the forward area resulting from combustion within the combustion chamber.
Spotter ammunition projectiles adapted to be fired from a firearm, methods for making spotter ammunition projectiles, and spotter ammunition cartridges including spotter ammunition projectiles are provided. In one example, a spotter ammunition projectile includes a projectile body section extending in a distal direction to a body distal end portion. A projectile ogive is coupled to the body distal end portion and has an outer ogive surface that tapers in the distal direction towards a shoulder. The projectile ogive includes a post that is disposed adjacent to the shoulder and that extends therefrom in the distal direction. An ogive nose cap is disposed adjacent to the shoulder and covers the post. The post and the ogive nose cap are cooperatively configured to define a cavity therebetween. A pyrotechnic spotter composition is disposed in the cavity.
F42B 12/40 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling of target-marking, i.e. impact-indicating, type
F42B 12/38 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling of tracer type
F42B 5/02 - Cartridges, i.e. cases with propellant charge and missile
F42B 33/00 - Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
Spotter ammunition projectiles adapted to be fired from a firearm, methods for making spotter ammunition projectiles, and spotter ammunition cartridges including spotter ammunition projectiles are provided. In one example, a spotter ammunition projectile includes a projectile body section extending in a distal direction to a body distal end portion. A projectile ogive is coupled to the body distal end portion and has an outer ogive surface that tapers in the distal direction towards a shoulder. The projectile ogive includes a post that is disposed adjacent to the shoulder and that extends therefrom in the distal direction. An ogive nose cap is disposed adjacent to the shoulder and covers the post. The post and the ogive nose cap are cooperatively configured to define a cavity therebetween. A pyrotechnic spotter composition is disposed in the cavity.
F42B 12/40 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling of target-marking, i.e. impact-indicating, type
F42B 5/145 - Cartridges, i.e. cases with propellant charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances
F42B 12/42 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling of illuminating type, e.g. carrying flares
6.
SPOTTER AMMUNITION PROJECTILE AND METHOD FOR MAKING THE SAME
Spotter ammunition projectiles adapted to be fired from a firearm, methods for making spotter ammunition projectiles, and spotter ammunition cartridges including spotter ammunition projectiles are provided. In one example, a spotter ammunition projectile includes a projectile body section extending in a distal direction to a body distal end portion. A projectile ogive is coupled to the body distal end portion and has an outer ogive surface that tapers in the distal direction towards a shoulder. The projectile ogive includes a post that is disposed adjacent to the shoulder and that extends therefrom in the distal direction. An ogive nose cap is disposed adjacent to the shoulder and covers the post. The post and the ogive nose cap are cooperatively configured to define a cavity therebetween. A pyrotechnic spotter composition is disposed in the cavity.
F42B 12/40 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling of target-marking, i.e. impact-indicating, type
F42B 12/42 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling of illuminating type, e.g. carrying flares
F42B 5/145 - Cartridges, i.e. cases with propellant charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances
Cartridges and cartridge cases adapted to be chambered in weapon systems are provided. In one example, a cartridge case includes a front shell having a case base end portion, a case body portion extending forward from the case base end portion towards a case mouth portion that is configured for holding a projectile. The case base end portion has a first interlocking feature. A reinforcing cap is disposed adjacent to the case base end portion on a side opposite the internal volume. The reinforcing cap has an annular extraction groove, a primer pocket, a flash hole for providing fluid communication between the primer pocket and the internal volume, and a second interlocking feature that engages the first interlocking feature to couple the reinforcing cap to the case base end portion.
A primer composition is provided having a primary explosive and an oxidizer system containing a tungsten oxide or a tungstate compound. The oxidizer system can by non- hydroscopic and non-toxic. The primer can include reducing agents, sensitizers, binders and gas producing agents. The primer composition generally is applicable to any application or device that employs ignition of a propellant, a fuel, a relay charge, a delay charge, or a booster charge, including, but not limited to, air bag gas generator systems, signaling devices, ejection seats, small, medium or large arms ammunition primers, and the like.
A primer composition is provided having a primary explosive and an oxidizer system containing a tungsten oxide or a tungstate compound. The oxidizer system can by non- hydroscopic and non-toxic. The primer can include reducing agents, sensitizers, binders and gas producing agents. The primer composition generally is applicable to any application or device that employs ignition of a propellant, a fuel, a relay charge, a delay charge, or a booster charge, including, but not limited to, air bag gas generator systems, signaling devices, ejection seats, small, medium or large arms ammunition primers, and the like.
An ammunition primer assembly is provided that includes, but is not limited to a cup having a base and a sidewall, a priming composition located in the cup and disposed on the base, an anvil located in the cup an upper surface, a lower surface and a side surface abutting the sidewall. The anvil defining a central channel formed therethrough. A portion of the base of the cup forms a striking surface. The striking surface is adjacent to a portion of the primer composition that is adjacent to the lower surface of the anvil. The striking surface is offset from a center of the cup.
patents
