Tracer ammunition

Details Tracer ammunition Tracer ammunition

F - Mech Eng,Light,Heat,Weapons

42

B

102/25, 52/34, 8

F42B 10/00 (2006.01) F42B 12/00 (2006.01) F42B 30/00 (2006.01)

Patent

CA 1275858

ABSTRACT OF THE DISCLOSURE A tracer ammunition round having a propellant charge is provided herein. The tracer ammunition round includes a hollow jacket having a generally pointed front end and a generally blunt rear end, the jacket defining a shaped interior cavity. A shaped slug is inserted into the jacket cavity, the slug comprising a metallic body, the body comprising a forward end, a rearward end and an elongated, cylindrical, central opening, the central open- ing extending longitudinally through the entire length of the body from the forward end to the rearward end, the rearward end being exposed to the propellant charge, the ratio of the length of the central opening to the diameter of the central opening being at least five. A pyrotechnic composition is provided within the central opening and completely fills the central open- ing, the pyrotechnic composition comprising a fuel, an oxidizer and a binder, the pyrotechnic composition being capable of being ignited by the propellant charge upon firing to provide a visible trace of the trajectory of the round, the pyrotechnic composition defining an elongated, small diameter, pyrotechnic column, the pyrotechnic column having a diameter of 00035 inches. By these combination of features, the small diameter pyrotechnic column and the heat sink effect of the slug combine to provide an extended trace burn time.

486820

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