Polymer jacketed powder core projectile
AssigneeTrue Velocity IP Holdings, LLC
InventorHarold F. Beal
Life of this patent
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Abstract
A method is disclosed for coating a projectile for use in an ammunition cartridge. A polymer jacket is applied to an undersized projectile core of a first standard caliber to bring the outer dimensions of the jacketed projectile into compliance with those of a second, larger caliber projectile. The polymer jacket coating may produce a non-uniform outer diameter of the polymer jacketed projectile and may include a plurality of circular cavities defined therein. The polymer-jacketed projectile may be a bullet for pistol or rifle ammunition, or a pellet, or shot for use in a shotgun shell.
Claims20
A polymer jacketed projectile, comprising:
- an undersized core having a first diameter and a first length, wherein the first diameter is equal to a standard diameter for a first caliber projectile and wherein the first length is equal to a standard length for the first caliber projectile;
- a jacket covering an outer surface of the undersized core and made from polymer, wherein the jacket forms a second outer diameter and a second outer length, wherein the second outer diameter is equal to a standard diameter for a second caliber projectile and wherein the second outer length is equal to a standard length for the second caliber projectile;
- and
- wherein the jacket has a nonuniformed outer surface and wherein the polymer jacketed projectile has a weight less than a standard weight of the second caliber projectile.
A method for manufacturing a polymer-jacketed projectile, comprising:
- preforming an undersized core from one or more metal powders by metal injection molding, wherein the undersized core has a first diameter and a first length which are equal to a standard diameter and standard length for a first caliber projectile;
- and
- molding a jacket, composed of one or more polymers, over the undersized core to form a polymer jacket with a nonuniformed outer surface, wherein the polymer jacket has a second diameter and a second length which are equal to a standard diameter and a standard length for a second caliber projectile, wherein the polymer-jacketed projectile has a weight that is less than a standard weight of the second caliber projectile.
Dependencies are inferred from the claim text.