Patent ID: 8448575

Claim:
An improved 9 mm cartridge comprising: a 9.0 mm bullet, wherein said 9.0 mm bullet weights at least 90 grains and is configured for operation with a 9 mm firearm; a 0.45 caliber cartridge case having a length approximately equal to 0.9880 inches, wherein said 0.45 caliber cartridge case includes a case bottom portion communicated with a case top portion via a case middle portion having a case middle portion length that is approximately equal to 0.236 inches, said case bottom portion having a diameter that is larger in size than said case top portion such that said case middle portion diameter is tapered approximately equal to 20° between said case bottom portion and said case top portion, wherein said case bottom portion, said case middle portion and said case top portion define a case cavity and wherein said case top portion includes a top opening communicated with said case cavity, said top opening sized to interact with said 9.0 mm bullet, wherein said 9.0 mm bullet is frictionally associated with said top opening such that at least a portion of said 9.0 mm bullet is disposed within said case cavity; a means for propelling said 9.0 mm bullet to a velocity of at least 1600 feet per second, wherein said means for propelling is at least partially disposed within said casing cavity; and a cap, wherein said cap is associated with said case bottom portion such that when said cap is engaged, said cap causes said means for propelling said 9.0 mm bullet to propellingly interact with said 9.0 mm bullet, wherein the cartridge has a length of approximately equal 1.275 inches.