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US 7,322,297 B2Granted
Cannelured frangible projectile and method of canneluring a frangible projectile
AssigneeInternational Cartridge Corporation
InventorDaniel S. Yaich
Life of this patent
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Abstract
A method of canneluring a frangible projectile includes the steps of rotating the projectile at a high speed, and cutting the cannelure into the projectile to form a frangible cannelured projectile. To ensure that the body is not damaged during cutting, the cutting tool has bevels on each side of a square, generally flat, cutting surface. A frangible cannelured projectile made by the foregoing method includes a groove having a generally flat base and beveled edges.
Claims6
A frangible bullet having a cannelure, consisting of:
- a body made of a compressed powdered metal material that disintegrates upon contact with an object;
- and
- a cannelure cut into the compressed powered metal material, wherein the cannelure includes beveled edges and a generally flat base.
Dependencies are inferred from the claim text.