Federal Premium HST 380 Auto 99gr JHP

Federal Premium HST 380 Auto 99gr is the definitive choice for .380 ACP self-defense ammunition. In Lucky Gunner's calibrated gel testing through 4-layer denim, the 99gr HST produced 13.2 inches of penetration and 0.573 inches of expansion, making it one of the few widely available .380 loads documented inside the FBI's 12 to 18 inch penetration window through heavy clothing barriers.

The HST bullet design uses a specially skived hollow point that initiates expansion through clothing reliably at the lower velocities typical of pocket .380 pistol barrels. The 99gr bullet weight provides better sectional density than lighter 85 to 90gr loads, which translates directly to deeper, more consistent penetration. The nickel-plated brass case feeds smoothly and resists the moisture common to pocket carry environments.

Federal lists the HST at 1,030 fps and 233 ft-lbs from its catalog test barrel. That puts it at the upper end of standard-pressure .380 ACP defensive performance without moving into +P territory. For anyone who carries a .380 pistol as their primary defensive handgun, Federal HST 99gr is one of the safest bets to function-test first.