Frangible ammunition

Details Frangible ammunition Frangible ammunition

1996-09-20

1998-06-16

Tudor, Harold J.

Ammunition and explosives

Cartridges

Practice projectile type

102439, 102506, 102529, F42B 814

Patent

active

057674388

ABSTRACT:
A frangible projectile (1) is provided which has a conical nose (5) with an included angle in the range 40-41 degrees. The conical nose (5) has a forward end (9) which is blunt. The projectile is made from a mixture of a metal powder and a thermoplastic resin of nylon 11. The metal is about 80% by weight and the projectile has a specific gravity in the range 2.35 to 5.7.
The projectile exhibits desired ballistic characteristics for distances up to about 150 m and can disintegrate on impact with solid objects. In addition a projectile made according to the preferred embodiment and fitted in a 5.56 mm.times.45 mm military cartridge case (equivalent to a 0.223 inch Remmington case) charged with a propellant such as type AR2207 (by ADI Ltd.) in the range of 25-26 grains, exhibits particularly suitable characteristics for use in firing ranges.

REFERENCES:
patent: 4165692 (1979-08-01), Dufort
patent: 4334478 (1982-06-01), Goes et al.
patent: 4947755 (1990-08-01), Burczynski
patent: 4958572 (1990-09-01), Martel
patent: 5078054 (1992-01-01), Ashok etal.
patent: 5237930 (1993-08-01), Belanger et al.
Lyman Reloading Handbook for Rifle, Pistol and Muzzle Loading, 45 Edition, 1970 p. 257.
Elf Atochem, Jan. 9, 1994, pp. 1-4.
Rilsan and the Armaments Industry, No. 867.E/ May 1988, pp. 1-5.

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