Winchester Defender 12 Gauge 2 3/4in 9 Pellets Centerfire Shotgun Buckshot Ammo 10 Round. Specifications for Winchester Defender 12 Gauge 2 3/4in 9 Pellets Shotgun Buckshot Ammunition: Manufacturer: Winchester Gauge: 12 Number of Rounds: 10 Shell Length: 2 3/4 in Muzzle Velocity: 1145 ft/s Included Accessories: Standard Application: Practice Shot Size: 00 Buck Shot Material: Copper-Plated Lead Primer Style: Centerfire Cartridge Case Material: Plastic Shotgun Pellet Count: 9 Lead Free: No Length: 2.75 in Features of Winchester Defender 12 Gauge 2 3/4in 9 Pellets Centerfire Shotgun Buckshot Ammunition 9 Copper Plated 00 Buck Pellets: Delivers massive shock with manageable recoil through defensive shotguns Buffered Payload: Ensures consistent and reliable patterns Engineered Buckshot Wad: Ensures pellets stack properly to deliver consistent patterns Package Contents: Winchester Defender 12 Gauge 2 3/4in 9 Pellets Centerfire Shotgun Buckshot Ammunition What is Winchester Defender 12 Gauge 2 3/4in 9 Pellets Shotgun Buckshot Ammunition good for? The manufacturer says that it is good for practice.Winchester Win Ammo Defender 12ga. 2.75'' 00bk 9-pellets 10-pack