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 the only widely available .380 load that consistently falls within 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 loads the HST to standard pressure at approximately 1,020 fps from a test barrel, producing around 229 ft-lbs of muzzle energy. This is at the upper end of .380 ACP performance and delivers terminal results that rival what lighter-loaded 9mm can produce. For anyone who carries a .380 pistol as their primary defensive handgun, Federal HST 99gr eliminates the guesswork.