Firearms cartridge with rectangular, rounded oblong, or elliptical casing

Abstract

This invention describes ammunition cartridges for pistols or other armaments with propellant-filled casings having a generally square, rectangular, rounded oblong or ellipse-like cross-section. These casings would neck down over a short distance at the front to mate with the bullet. These shapes would allow more rounds of equivalent firepower to be contained in a shorter magazine or smaller diameter revolver cylinder than is possible with standard circular cross-section ammunition.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] Not applicable.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] Not applicable. REFERENCE TO SEQUENCE LISTING, ETC. [0003] Not applicable. FIELD OF THE INVENTION [0004] This invention pertains to cartridges for any firearm for which it is desirable to hold as many rounds of ammunition as possible as compactly as possible within its magazine or cylinder. Typical examples would be rifles, machine guns, shotguns, pistols, or revolvers for combat, self-defense or police use. BACKGROUND OF THE INVENTION [0005] Conventional firearm cartridges universally have circular cross sections. They are simple and inexpensive to manufacture, but because of their geometry cannot be tightly packed to use all of the space available in a magazine or storage container. This inability to fit together without leaving empty spaces between the rounds reduces the number of rounds a magazine could potentially hold, and / or increases the required volume of th...

AI Technical Summary

Benefits of technology

[0007] This invention describes cartridges for pistols, rifles, revolvers, or other armaments with casings having a generally square, rectangular, rounded oblong or ellipse-like cross section instead of the circular cross section typical of conventional cartridges. Square, rectangular, oblong or elliptical shapes may be butted together in a magazine or other container with much tighter packing and less wasted (empty) space than is possible for circular-section casings holding the sa

Problems solved by technology

They are simple and inexpensive to manufacture, but because of their geometry cannot be tightly packed to use all of the space available in a magazine or storage container.

This inability to fit together without leaving empty spaces between the rounds reduces the number of rounds a magazine could potentially hold, and / or increases the required volume of the magazine, or limits the number of rounds in a revolver cylinder, all of which are undesirable.

Also, the heat generated by the burning propellant is transmitted directly to the breech instead of being absorbed by a metal casing which is then expelled, causing rapid heating of the gun when firing multiple rounds.

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