Patent ID: 8430035
Filing Date: 2013-04-30
Classification: F42B

Abstract:
1. A blank cartridge, comprising a case, a cartridge base, a case wall extending from said base, with said case wall having a diameter with a reverse taper, a cartridge shoulder at the end of the case wall, said cartridge shoulder forming a cartridge neck, and a nose extending from said cartridge shoulder and said cartridge neck, and said nose enclosing said blank cartridge; and said blank cartridge having the following dimensions: base diameter of between 0.353 and 0.383 inches with a tolerance of 0.005 inches, case wall length from said base to juncture of shoulder 0.75 inches with a tolerance of 0.01 inch, external case wall diameter at juncture with said cartridge shoulder and said cartridge neck between 0.342 and 0.371 inches with a tolerance of 0.005 inches, and external diameter of said nose at the juncture with said cartridge shoulder and said cartridge neck of not greater than 0.325 inches with a tolerance of 0.005 inches.