Featuring Barnes' patented X-Bullet technology, all-copper XPB bullets offer dramatically increased penetration over conventional jacketed lead-core bullets. These lead-free bullets provide superior expansion and weight retention. Energy transfer is unsurpassed, making them ideal for hunting or self-defense. Barnes' XPB bullets are exceptionally accurate and leave no residue to harm shooters in practice environments. Specifications and Features:Caliber 500 S&WType XPBWeight 375 GRDiameter .500S.D. 0.214B.C. 0.261Length 1.162Box QTY 20Catalog #30667