The Federal Premium Personal Defense Handgun Ammo 357 Mag HST JHP brings the trusted HST series to shooters who demand consistent expansion and controlled penetration in self-defense and home defense scenarios, and as the duty load chosen by law enforcement it offers proven terminal performance under the FBI test protocol used to assess duty ammunition. Youll notice the specially designed hollow point maintains reliable expansion through barriers and the jacket and core hold together to deliver nearly 100 percent weight retention, producing an expanded diameter and depth of penetration that stops threats without unnecessary over-penetration. Loaded to 1340 fps with a 154 grain HST jacketed hollow point, this 357 Magnum offering generates about 614 ft-lbs of energy, feeding semi-automatic handguns reliably thanks to the nickel-plated case and high-performance primer that improve feeding and ignition consistency. If you carry for personal defense or equip a nightstand for home defense, this Federal Premium HST round provides consistent ballistics, law-enforcement-proven terminal effects, and the dependable function you need on the range and in real-world defensive use.