The Federal Premium Personal Defense Hydra-Shok .357 Magnum 158gr JHP load (Federal part no. P357HS1) puts a bullet design that has been in service since 1989 into full-power revolver ammunition. Federal built it around a notched copper jacket that starts and controls expansion, with a center-post hollow point that keeps that expansion reliable. Each box holds 20 rounds, and Federal rates the load at 1240 fps from a 4-inch test barrel. It suits a defensive revolver or a carbine chambered for the cartridge, with enough rounds in the box to confirm point of impact before you carry it.

Key Specifications

• The chambering is .357 Magnum, the full-power revolver cartridge this load is built for.
• Bullet weight is 158 grains, the classic weight for defensive .357 Magnum loads.
• The bullet is Federal’s Hydra-Shok jacketed hollow point, a design in service since 1989.
• The notched copper jacket initiates and controls expansion once the bullet meets tissue.
• A center-post hollow-point design gives the bullet reliable expansion.
• Muzzle velocity is 1240 fps from a 4-inch test barrel, which sets the baseline for the load’s energy.
• Muzzle energy is 539 foot-pounds per Federal’s published ballistics, a figure that falls to 396 foot-pounds at 100 yards.
• Velocity is 1139 fps at 50 yards, showing how little speed the bullet sheds across typical handgun distances.
• Velocity at 100 yards is 1063 fps, useful for carbine shooters stretching the load out.
• Each box contains 20 rounds, a practical count for loading carry cylinders with spares left over.

Frequently Asked Questions

What is the Hydra-Shok bullet designed to do? Federal describes the notched copper jacket as initiating and controlling expansion, while the center-post hollow-point design provides reliable expansion.

How many rounds come in this box? The box holds 20 rounds of .357 Magnum 158-grain Hydra-Shok ammunition.

What velocity does Federal publish for this load? Federal lists 1240 fps at the muzzle from a 4-inch test barrel, with 1139 fps at 50 yards and 1063 fps at 100 yards.

Buy the Federal Premium Personal Defense Hydra-Shok .357 Magnum 158gr JHP

Self-defense ammunition earns its place by working the same way every time, and Hydra-Shok has a long record of doing that in the .357 Magnum. Order Federal Ammunition‘s handgun ammunition from our Lubbock, Texas gun shop for fast, insured shipping to your door.