Federal Premium Personal Defense HST 40 S&W 180 Grain Jacketed Hollow Point Centerfire Pistol Ammo 20 Rounds. This 40 S&W Ammunition is constructed with a nickel-plated case and a high-performance Federal primer. Federal says their handgun ammunition has a "reinforced nose" and "quality hollow point" bullet design. This industry-leading ammunition has proven itself time and time again as the best possible self-defense ammunition. Their performance in FBI testing is based on the ability of their handgun ammunition to reliably expand and penetrate through a variety of barriers. It has also been designed to achieve the ideal expansion and weight retention needed in personal defense situations. Federal says this is the result of their state of the art ballistics and engineering capabilities. Specifications for Federal Premium Personal Defense HST 40 S&W 180 Grain Jacketed Hollow Point Centerfire Pistol Ammunition: Manufacturer: Federal Caliber: .40 S&W Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 180 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1010 ft/s Muzzle Energy: 408 ft-lbs Application: Self-Defense Package Type: Box Primer Style: Centerfire Lead Free: No Gun Type: Handgun Features of Federal Premium Personal Defense HST 40 S&W 180 Grain Jacketed Hollow Point Centerfire Pistol Ammunition Specially designed hollow point expands reliably through a variety of barriers Expanded diameter and weight retention produce the desired penetration for personal defense situations without over penetrating Superior performance in FBI test protocol used by law enforcement officials to assess and select duty ammunition Bullet nose profile nickel-plated case and high-performance primer provide the ultimate in function and reliability in semi-automatic handguns Package Contents: Federal Premium Personal Defense HST 40 S&W 180 Grain Jacketed Hollow Point Centerfire Pistol Ammunition Federal P40HST1S: Premium Personal Defense HST 40 S&W 180 Grain Jacketed Hollow Point Centerfire Pistol Ammo 20 Rounds