When lives hang in the balance, Federal Premium Personal Defense HST Handgun Ammunition has been proven to perform at its peak. Federal Premium handgun loads offer consistent expansion, optimum penetration and superior terminal performance. Hollow points won't plug while passing through a variety of barriers. Bullet jackets and cores hold together and have near 100% weight retention while penetrating even the toughest materials. These popular and effective loads trusted by law enforcement officers are now available for your specific personal-defense needs. Technical Information