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Non-lead environmentally safe projectiles and method of making same

United States Patent

October 5, 1999
View the Complete Patent at the US Patent & Trademark Office
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A projectile, such as a bullet, is made by combining two different metals in proportions calculated to achieve a desired density, without using lead. A base constituent, made of a material having density greater than lead, is combined with a binder constituent having less density. The binder constituent is malleable and ductile metallic base material that forms projectile shapes when subjected to a consolidation force, such as compression. The metal constituents can be selected, rationed, and consolidated to achieve desired frangibility characteristics.
Lowden; Richard A. (Clinton, TN), McCoig; Thomas M. (Maryville, TN), Dooley; Joseph B. (Harriman, TN)
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
08/ 767,434
December 16, 1996
This invention was made with government support under Contract No. DE-AC05-840R21400 awarded by the U.S. Department of energy to Martin Marietta Energy systems, Inc. and the government has certain rights in the invention.