Winchester Defender Handgun 9 mm Luger 147 grain Bonded Jacketed Hollow Point Brass Cased Centerfire Pistol Ammo 20 Rounds S9 mmPDB1. Our innovative bonding process welds the jacket to lead core for improved penetration 1.5x expansion and the proven performance you rely on when the stakes are high. Specifications for Winchester Defender Handgun 9 mm Luger 147 grain Bonded Jacketed Hollow Point Brass Cased Centerfire Pistol Ammunition: Manufacturer: Winchester Caliber: 9mm Luger Number of Rounds: 20 Bullet Type: Bonded Jacketed Hollow Point (BJHP) Bullet Weight: 147 grain Cartridge Case Material: Brass Muzzle Velocity: 1000 ft/s Muzzle Energy: 326 ft-lbs Application: Personal Defense Package Type: Box Primer Style: Centerfire Lead Free: No Gun Type: Handgun Features of Winchester DEFENDER HANDGUN 9 mm Luger 147 grain Bonded Jacketed Hollow Point Brass Cased Centerfire Pistol Ammunition: Hollow PointExpands up to 1.5x the original diameter resulting in maximum stopping power Notched JacketPreprogrammed to expand into six uniform segments for consistent tactical performance Proprietary Bonding ProcessWelds jacket to lead resulting in improved penetration and retained weight Package Contents: Winchester DEFENDER HANDGUN 9 mm Luger 147 grain Bonded Jacketed Hollow Point Brass Cased Centerfire Pistol Ammunition Winchester DEFENDER HANDGUN 9 mm Luger 147 grain Bonded Jacketed Hollow Point Brass Cased Centerfire Pistol Ammo 20 Rounds S9 mmPDB1