Federal Premium Personal Defense Hydra-Shok 357 Magnum 158 Grain Jacketed Hollow Point Centerfire Pistol Ammo 20 Rounds. This 357 magnum Ammo developed by Federal Premium shooters has a notched copper jacket that initiates and controls expansion so every shot delivers more impact power. The Federal Premium 357 magnum DE MAG 158gr Hydra-Shok Jacketed Hollow Point is a dependable defense load that you can count on. This ammunition is meant for traditional handguns with a full metal jacket. For home defense or plinking these rounds are perfect because they offer a more economical alternative without sacrificing performance. Keep your weapon loaded with Federal Premium 357 magnum ammo for a trusted defense round in any situation. Specifications for Federal Premium Personal Defense Hydra-Shok 357 Magnum 158 Grain Jacketed Hollow Point Centerfire Pistol Ammunition: Manufacturer: Federal Caliber: .357 Magnum Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 158 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1240 ft/s Muzzle Energy: 539 ft-lbs Application: Self-Defense Package Type: Box Primer Style: Centerfire Lead Free: No Gun Type: Handgun Features of Federal Premium Personal Defense Hydra-Shok 357 Magnum 158 Grain Jacketed Hollow Point Centerfire Pistol Ammunition Superb accuracy and overall ballistic performance Hydra-Shok bullet's notched copper jacket initiates and controls expansion Center-post hollow-point design provides reliable expansion Package Contents: Federal Premium Personal Defense Hydra-Shok 357 Magnum 158 Grain Jacketed Hollow Point Centerfire Pistol Ammunition Federal P357HS1: Premium Personal Defense Hydra-Shok 357 Magnum 158 Grain Jacketed Hollow Point Centerfire Pistol Ammo 20 Rounds