A specialized copper jacket completely encapsulates the lead core of Speer Plinker handgun bullets. The result is drastically reduced airborne lead and consistent, accurate performance - all at a price that's perfect for high-volume shooting at the range. Features: Uniform copper jacket Lead core is completely encapsulated, minimizing airborne lead Affordably priced for high-volume reloading and shooting at the range 1 year limited warranty (materials and workmanship)