Friable metal bullet, lead-free friable metal bullet, respective manufacturing method and lead-free cartridge

摘要

"CRIMBLE METAL BULLET, LEAD-FREE COLD METAL BALLET, RESPECTIVE MANUFACTURING METHOD AND LEAD-FREE CARTRIDGE". A friable metal bullet (10), method of manufacture and ammunition made from it. The friable metal bullet (10) is formed of a mixture of metal particles and metal or metalloid binder forming material that is compacted in the desired shape, heated to a temperature above that necessary to form at least one intermetallic compound, but, below the temperature of agglutination of the metal particles by sintering and below the temperature of formation of substantial amounts of a ductile alloy of the metal of the particles and the material for forming the metal or metalloid binder and then cooled. These bullets (10) have sufficient strength to maintain their integrity during firing, but disintegrate into powder on impact and can be formulated to be lead-free.