Federal, Tactical HST, 9mm, 124Gr +P, Jacketed Hollow Point from Federal's Law Enforcement Line. 50 Round Box. Effective self-defense requires ammunition that provides consistent expansion, optimum penetration and superior terminal performance. Its specially designed hollow point won't plug while passing through a variety of barriers, and the bullet jacket and core hold together to provide nearly 100 percent weight retention through even the toughest materials. P9HST3