Liberty Ammunition Steel Plate Range is designed to increase safety and minimize the environmental concerns from lead. The ammunition is loaded with SinterFire projectiles. Liberty Steel Plate Range ammunition features leadfree bullets that crumble into very small pieces when they hit a metal backstop. These precisionformed bullets are made of sintered powdered copper thats compressed under heat and pressure to form a bullet. Sintered technology means theres no separate jacket that can produce sharp fragments on impact.LABC072 9MMP 72 2010