Federal Premium Personal Defense Punch Features The Personal Defense Punch rounds are engineered for optimal performance with a muzzle energy of 100 ft lbs and a muzzle velocity of 1000 fps. The nickel-plated brass casing enhances durability and corrosion resistance while the nickel-plated bullet coating ensures smooth feeding and reliable function. The jacket hollow point (JHP) design promotes controlled expansion upon impact making it highly effective for home defense scenarios. Federal Premium Personal Defense Punch Specifications Brand: Federal Category: Rimfire Rounds Series: Personal Defense Punch Model: Premium Caliber: 22 WMR Rounds Per Box: 50 Casing Material: Nickel-Plated Brass Muzzle Energy: 100 ft lbs Muzzle Velocity: 1000 fps Application: Home Defense Bullet Coating: Nickel-Plated Bullet Type: Jacket Hollow Point (JHP) Bullet Weight: 45 gr