Patent ID: 6532876
Filing Date: 2003-03-18
Classification: F42B

Abstract:
An efficient 50 caliber gun cartridge having a proximal and distal end for propelling a projectile comprising:a rimless cylindrical casing having a diameter of approximately 0.688 inches at the distal end and a shoulder at the proximal end angling inward at an angle of approximately 30 degrees as a means to allow easier feeding in a machine gun; propellant contained in said cylindrical casing; a primer mounted on said cylindrical casing; and a neck portion extending distally from the shoulder wherein said neck portion has a mouth for accepting a projectile having a bore diameter of approximately 0.510 inches; wherein said casing has a length ranging from 1.75 inches to 2.5 inches measured from the primer to the mouth of said neck; and wherein said length of said casing is dependant upon water weight volume of said casing, said bore diameter of said mouth, and weight of the projectile.