Rifle and handgun cartridge

Abstract

A rifle or handgun cartridge is formed to have an overall length of about 2.260 inches, or 57.4 millimeters. The shell case has a case length between 1.550 inches and 1.620 inches and a neck forming a mouth for a variety of caliber bullets, preferably a standard .224 caliber bullet, or a 9.0 mm bullet. In the alternative, the bullet is a caliber .308 and the case length is 1.550. The shoulder adjoining the neck widens from the neck to a diameter of between 0.400 inches to 0.415 inches, and preferably 0.4059 inches. The base has a diameter of 0.426 to 0.430 inches (10.82-10.92 mm), and preferably 0.427 inches. The adjoining shell body forms the main powder chamber for receiving an explosive charge. A head adjoins the shell body and forms a base of the shell case. The head has a primer pocket formed therein communicating with the main powder chamber through a vent hole formed between the primer pocket and the main powder chamber.

1 . A rifle or handgun cartridge, comprising:
 a shell case having a case length between 1.580 inches and 1.620 inches and having a neck forming a mouth for a bullet having a diameter between 0.200 inches and 0.360 inches;   a shoulder adjoining said neck and widening from said neck to said shoulder, said shoulder having a diameter of 0.400 inches and 0.415 inches;   a shell body adjoining said shoulder and having an interior forming a main powder chamber for receiving an explosive charge;   a head adjoining said shell body and forming a base of said shell case, said base having a diameter of 0.426 inches and 0.430 inches, and said head having a primer pocket formed therein communicating with said main powder chamber through a vent hole formed between said primer pocket and said main powder chamber.   
     
     
         2 . The cartridge according to  claim 1 , wherein said mouth is sized for a bullet having a diameter of a standard 0.224 bullet. 
     
     
         3 . The cartridge according to  claim 1 , wherein said mouth is sized for a bullet having a diameter of a standard 0.358 bullet. 
     
     
         4 . The cartridge according to  claim 1 , wherein said shoulder is formed by a conical wall enclosing an angle of 25 to 45 degrees relative to a longitudinal axis of the cartridge. 
     
     
         5 . The cartridge according to  claim 4 , wherein said conical wall encloses an angle of approx. 28 to 35 degrees with the longitudinal axis of the cartridge. 
     
     
         6 . The cartridge according to  claim 1 , wherein said shoulder walls enclose an angle of substantially 60° with one another. 
     
     
         7 . The cartridge according to  claim 1 , wherein said shell case has a case length of approximately 1.600 inches. 
     
     
         8 . The cartridge according to  claim 7 , wherein said shell case has a case length of 1.600 inches. 
     
     
         9 . The cartridge according to  claim 1 , wherein said shoulder widens to a widest diameter of 0.4059 inches. 
     
     
         10 . The cartridge according to  claim 1 , wherein said neck has a diameter of substantially 0.2575 inches. 
     
     
         11 . The cartridge according to  claim 1 , wherein said neck has a diameter of substantially 0.276 inches. 
     
     
         12 . The cartridge according to  claim 1 , wherein said neck has a diameter of substantially 0.390 inches. 
     
     
         13 . A rifle or handgun cartridge, comprising:
 a shell case having a case length substantially 1.550 inches and having a neck forming a mouth sized for a bullet having a diameter of a standard 0.308 bullet;   a shoulder adjoining said neck and widening from said neck to said shoulder, said shoulder having a diameter of between 0.400 inches and 0.415 inches;   a shell body adjoining said shoulder and having an interior forming a main powder chamber for receiving an explosive charge;   a head adjoining said shell body and forming a base of said shell case, said base having a diameter of 0.426 inches and 0.430 inches and said head having a primer pocket formed therein communicating with said main powder chamber through a vent hole formed between said primer pocket and said main powder chamber.