Barnes XPB Pistol Bullets are available for .357 Magnum .500 S&W .44 caliber .460 S&W .45 Colt and others. These bullets are designed using the same technology associated with the X Bullet which has a high success rate. The bullets are 100 percent copper and made to deliver serious energy. For individuals who enjoy pistol hunting these bullets are proven to penetrate up to 25 percent more than bullets with a lead core. However they stay intact to expand like no other bullet on the market. When it comes to high-quality bullets many hunters depend on this particular brand.