Method of making a metal injection molded ammunition cartridge

A method of making a metal injection molded ammunition comprising the steps of:

• providing an ammunition cartridge mold comprising a bottom portion having a primer recess extending into the bottom portion adapted to receive a primer, a flash hole positioned in the primer recess through the bottom surface;
• side walls extending from the bottom portion to a nose end aperture, wherein a propellant chamber is formed between the nose end aperture and the bottom surface;
• injecting a metal composition into the ammunition cartridge mold to form a metal injection molded ammunition cartridge, wherein the metal composition comprises stainless steel, brass, copper and cobalt and nickel alloys, tungsten, tungsten carbide, carballoy, ferro-tungsten, titanium, copper, cobalt, nickel, alumina oxide, zirconia and aluminum;
• and
• removing the metal injection molded ammunition cartridge from the ammunition cartridge mold;
• inserting a primer into the primer recess;
• at least partially filling the propellant chamber with a propellant;
• and
• inserting a projectile into the nose end aperture.