Short magnum shotshell cartridge and firing assembly
AssigneeOlin Corporation
InventorStephen W. Meyer
Life of this patent
Estimating the term…
Abstract
A sabot-retaining shotshell cartridge and firing assembly including a barrel or barrel insert for firing the sabot-retaining shotshell cartridge. The shotshell cartridge includes a cylindrical hull, a sub-caliber projectile, a propellant charge, and a sabot. A central pathway or thin membrane is defined within the base of the sabot between the sub-caliber projectile and propellant charge. The barrel or barrel insert for firing the cartridge includes a transitional area between chamber and sub-caliber rifled bore to retain sabot in the cartridge. Upon cartridge firing, propellant gases flow through central portion of sabot base propelling projectile out of the sabot and into sub-caliber rifled bore.
Claims15
A shotshell cartridge for use in a sabot-retaining shotshell cartridge chamber comprising:
- a sub-caliber projectile including a frontal portion at one end, a base at an opposite end, and sidewalls between said frontal portion and said base;
- a propellant charge;
- a sabot accommodating said projectile, said sabot including a central pathway between said base of said projectile and said propellant charge;
- a thin membrane over said central pathway;
- a hull including a front portion and an aft portion, said hull configured to extend along a substantial portion of a length of the shotshell cartridge, said hull accommodating said sabot, said projectile, and said propellant;
- and a cap attached to said hull adjacent said aft portion of said hull, said cap having a centrally seated primer.
A shotshell cartridge for use in a sabot-retaining shotshell cartridge chamber comprising:
- a sub-caliber projectile including a frontal portion at one end, a base at an opposite end, and sidewalls between said frontal portion and said base;
- a propellant charge;
- a sabot accommodating said projectile, said sabot including a central pathway between said base of said projectile and said propellant charge:
- a thin membrane over said central pathway;
- wherein said sabot includes at least one of a rigid washer and ledge supporting said projectile in front of said thin membrane or central pathway;
- a hull including a front portion and an aft portion, said hull configured to extend along a substantial portion of a length of the shotshell cartridge, said hull accommodating said sabot, said projectile, and said propellant;
- and a cap attached to said hull adjacent said aft portion of said hull, said cap having a centrally seated primer.
A system for firing a sabot-retaining shotshell cartridge including a sub-caliber projectile, comprising:
- a sub-caliber projectile including a frontal portion at one end, a base at an opposite end, and sidewalls between said frontal portion and said base;
- a propellant charge;
- a sabot accommodating said projectile, said sabot including a central pathway between said base of said sub-caliber projectile and said propellant charge;
- a thin membrane over the central pathway;
- a hull including a front portion and an aft portion, said hull configured to extend along a substantial portion of a length of the shotshell cartridge, said hull accommodating said sabot, said projectile, and said propellant;
- a cap attached to said hull adjacent said aft portion of said hull, said cap having a centrally seated primer;
- a chamber including a diameter and length sized to accept the cartridge;
- a rifled bore having a diameter substantially the same as a diameter of said sub-caliber projectile;
- and a transitional area between said chamber and said bore for retaining said sabot of the cartridge in said hull of the cartridge upon firing.
A system for firing a sabot-retaining shotshell cartridge including a sub-caliber projectile, comprising:
- a sub-caliber projectile including a frontal portion at one end, a base at an opposite end, and sidewalls between said frontal portion and said base;
- a propellant charge;
- a sabot accommodating said projectile, said sabot including a central pathway between said base of said sub-caliber projectile and said propellant charge;
- a thin membrane over the central pathway;
- wherein said sabot includes at least one of a rigid washer and ledge supporting said sub-caliber projectile in front of said thin membrane or central pathway;
- a hull including a front portion and an aft portion, said hull configured to extend along a substantial portion of a length of the shotshell cartridge, said hull accommodating said sabot, said projectile, and said propellant;
- a cap attached to said hull adjacent said aft portion of said hull, said cap having a centrally seated primer;
- a chamber including a diameter and length sized to accept the cartridge;
- a rifled bore having a diameter substantially the same as a diameter of said sub-caliber projectile;
- and a transitional area between said chamber and said bore for retaining said sabot of the cartridge in said hull of the cartridge upon firing.
Dependencies are inferred from the claim text.