Patent ID: 6457417
Filing Date: 2002-10-01
Classification: F42B

Abstract:
A method for the manufacture of a frangible core for a projectile of a small bore gun ammunition comprising the steps ofblending into a dry blended powder mixture at least a heavy metal powder having a major portion of the powder particles thereof of a size less that about 325 mesh, a light metal powder having a major portion of the powder particles thereof of a size less than about 325 mesh, and a non-metal matrix powder, the particles thereof having an average particle size of about 12 microns, said matrix powder being present in the mixture in an amount of between about 0.01% and about 1.2%, by weight, whereby said particles of said metal powders and said particles of said matrix powder are substantially uniformly distributed throughout said blended dry blended powder mixture as discrete individual particles, introducing a quantity of said dry blended powder mixture into a die cavity, compacting said dry blended powder mixture in said dir cavity at about room temperature employing a pressure sufficient to produce a non-sintered self-supporting core.