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Cartridge for m16/ar15 rifles

a cartridge and cartridge technology, applied in the field of rifles, can solve the problems of bullet deflecting off the intended target, poor terminal performance of caliber bullets, and unsatisfactory overall performance of the cartridge, and achieve the effect of increasing the terminal performan

Inactive Publication Date: 2009-08-27
KRAMER LAWRENCE S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention is a new cartridge design that uses a larger bullet and case to improve performance. The overall length of the cartridge is the same as current designs, and it can be used in current M16 / AR15 rifles without modification. The use of a larger bullet allows for better terminal performance."

Problems solved by technology

The overall performance of this cartridge has proven quite unsatisfactory, especially in combat applications, because of the small 224 caliber bullet used in the cartridge.
In particular, the 224 caliber bullets tend to have poor terminal performance, where an insufficient amount of energy is transferred to the target upon impact, and they tend to loose energy rapidly after firing, which can cause the bullets to deflect off the intended target.
To date, however, performance remains at issue.
Since the larger case cannot be used with current M16 / AR15 rifle magazines, implementing this solution would require modifying or replacing all existing rifle magazines.
Further, loading accessories, such as bandoleers and stripper clips are also incompatible with the SPC cartridge.
In sum, the modifications to existing M16 / AR15 rifles that would be required to effectively implement the 6.8 mm SPC make the 6.8 mm SPC an impractical solution to the above problem.

Method used

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  • Cartridge for m16/ar15 rifles
  • Cartridge for m16/ar15 rifles
  • Cartridge for m16/ar15 rifles

Examples

Experimental program
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Embodiment Construction

[0015]FIG. 1A illustrates a template for cartridges for an M16 / AR15 rifle, according to embodiments of the present invention. FIG. 1B is a table illustrating dimensions for cartridges illustrated in FIG. 1A for an M16 / AR15 rifle, according to embodiments of the present invention. Abbreviations not illustrated in FIG. 1A are neck thickness NT and cartridge length CL.

[0016]As shown, six bullets 102, ranging from 6 mm to 7.62 mm in diameter, are used in combination with six respective cases 104 that have a base diameter, H, substantially similar or identical to the base diameter of the case included in the 223 Remington or the 5.56 mm NATO cartridge. Alternatively, any bullet having a larger diameter than the 0.224 inch diameter bullet may be used. The bullets 102 may be made from a metal, such as lead and jacketed with a second metal, such as copper, an alloy thereof, or steel. The bullets 102 may have hollow or solid points. The cases 104 may be made from a metal, such as brass. The ...

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PUM

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Abstract

One embodiment of the invention sets forth a cartridge design that includes a bullet having a larger diameter than the 0.224 inch bullet currently included in the 223 Remington or 5.56 mm NATO cartridge and a case that has substantially the same base diameter as the case currently included in the 223 Remington or the 5.56 mm NATO cartridge. The overall length of the disclosed cartridge is substantially similar to the overall length as the 223 Remington or the 5.56 mm NATO cartridge.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Pat. App. Nos. 60 / 804,186 (Atty. Dock. No. KRAMER / 001 (now KRMR / 0002L)), filed Jun. 8, 2006; 60 / 807,448 (Atty. Dock. No. KRAMER / 002 (now KRMR / 0003L)) filed Jul. 14, 2006; 60 / 807,454 (Atty. Dock. No. KRAMER / 003 (now KRMR / 0004L)), filed Jul. 14, 2006; 60 / 807,459 (Atty. Dock. No. KRAMER / 004 (now KRMR / 0005L)), filed Jul. 14, 2006; 60 / 807,464 (Atty. Dock. No. KRAMER / 005 (now KRMR / 0006L)), filed Jul. 14, 2006; and 60 / 807,465 (Atty. Dock. No. KRAMER / 006 (now KRMR / 0007L)) filed Jul. 14, 2006 which are hereby incorporated by reference in their entireties.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]Embodiments of the present invention relates generally to rifles and more specifically to a new cartridge design for M16 / AR15 rifles.[0004]2. Description of the Related Art[0005]The current cartridge used for the M16 / AR15 rifles is the 223 Remington (the civilian designation) or ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F42B30/02F41C7/00F42B12/34
CPCF42B5/025
Inventor KRAMER, LAWRENCE S.
Owner KRAMER LAWRENCE S