Match performance .22 caliber cartridge
AssigneeFederal-Hoffman, Inc.
InventorsBruce R. Lamberty, Shawn F. Callahan, Daniel N. Johnson
Life of this patent
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Abstract
A match performance 0.22 caliber cartridge having improved accuracy provided as a result of being manufactured with an improved base wall construction, and a thinner, less dense, more uniform and more effectively located lubricant coating on the bullet as compared to the 0.22 caliber cartridges utilized heretofore in match competition; and as a result of a lubricant groove which is located most advantageously and is manufactured with an optimum depth.
Claims20
A match performance 0.22 caliber cartridge comprising:
- (a) a metal casing having head, rim, main body, and mouth portions;
- (b) a bullet mounted within said mouth portion and having a leading portion extending forwardly of a circumferential lube groove formed therein;
- (c) primer compound located within said rim portion and bearing against said head portion;
- (d) propellant located within said main body portion in close proximity to said primer compound;
- (1) said propellant being disposed within said main body portion in sufficient quantity to propel said bullet, upon firing of the cartridge, at a velocity within the range of 1,130-1,150 feet per second, and
- (e) a coating of synthetic lubricant carried by only said leading portion of said bullet, said coating being of a thickness within the range of 0.0004"-0.0007".
A match performance 0.22 caliber cartridge comprising:
- (a) a metal casing having head, rim, main body, and mouth port ions;
- (b) a bullet mounted within said mouth portion and having a leading portion extending forwardly of a circumferential lube groove formed therein;
- (c) primer compound located within said rim portion and bearing against said head portion;
- (d) propellant within said main body portion in close proximity to said primer compound;
- (1) said propellant being disposed within said main body portion in sufficient quantity to propel said bullet, upon firing of the cartridge, at a velocity within the range of 1,130-1,150 feet per second, and
- (e) a coating of synthetic lubricant carried by only said leading portion of said bullet and extending to said lube groove, said coating being of a thickness within the range of 0.0004"-0.0007".
A match performance 0.22 caliber cartridge comprising:
- (a) a metal casing having head, rim, main body, and mouth portions;
- (b) a bullet mounted within said mouth portion and having a leading portion extending forwardly of a circumferential lube groove formed therein;
- (c) primer compound located within said rim portion and bearing against said head portion;
- (d) propellant within said main body portion in close proximity to said primer compound;
- (1) said propellant being disposed within said main body portion in sufficient quantity to propel said bullet upon firing of the cartridge, at a velocity within the range of 1,130-1,150 feet per second, and
- (e) a layered coating of synthetic lubricant carried by only said leading portion of said bullet, said coating being of a thickness within the range of 0.0004"-0.0007" and said synthetic lubricant upon application having a density within the range of approximately 8.3-8.4 pounds per gallon.
Dependencies are inferred from the claim text.