Tracer unit for ammunition

Details Tracer unit for ammunition Tracer unit for ammunition

1985-06-20

1986-07-01

Lechert, Jr., Stephen J.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

Contiguous layers or zones

149 40, 149 41, 149 43, 149 61, 86 20B, 102513, C06B 4514

Patent

active

045978107

ABSTRACT:
The tracer unit, which is particularly adaptable for ammunition used in hand guns and submachine guns, consists of a base charge including about 70 to about 90 weight % strontium peroxide, about 5 to about 15 weight % calcium resinate and about 5 to about 10 weight % magnesium and an igniter charge covering the base charge and including about 40 to about 60 weight % calcium resinate, about 20 to about 30 weight % strontium nitrate and about 20 to about 30 weight % magnesium. A small cavity in the rear end of a projectile is partially filled with the base charge which is tamped into the cavity by the application of a low pressure, such as by hand tamping with a metal plunger or the like. The igniter charge is added to the projectile cavity on top of the base charge and, after drying, the exposed surface of the igniter charge is covered with a compatible moisture proofing material, such as shellac.

REFERENCES:
patent: 3886009 (1975-05-01), Puchalski
patent: 3930844 (1976-01-01), Parrish et al.
patent: 3982930 (1976-09-01), Doades et al.
patent: 4130061 (1978-12-01), Boggs et al.

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