Estate Cartridge Estate Cartridge 12 Gauge 2-3/4in 3DE 1oz 7.5 Shot Size Shotgun Ammo 25 Rounds SS12H1 7.5. The tight patterns improve accuracy even at long range helping competitors hit the target. There are nine different shell choices each of which come with 25 rounds per box. They can include 12-gauge 1_-ounce rounds; 12-gauge 1-ounce rounds; 20-gauge _-ounce rounds; or small gauge (28 or .410) rounds (_ or _ ounces). This selection allows you to pick the right shells for your weapon target and preferences. Specifications for Estate Cartridge Estate Cartridge 12 Gauge 2-3/4in 3DE 1oz 7.5 Shot Size Shotgun Ammunition: Manufacturer: Estate Cartridge Gauge: 12 Number of Rounds: 25 Shot Size: 7.5 Shell Length: 2 3/4 in Muzzle Velocity: 1200 ft/s Application: Target Personal Defense Shotgun Shot Weight: 1 oz Shot Material: Lead Primer Style: Centerfire Cartridge Case Material: Brass Lead Free: No Package Contents: Estate Cartridge Estate Cartridge 12 Gauge 2-3/4in 3DE 1oz 7.5 Shot Size Shotgun Ammunition What is Estate Cartridge Estate Cartridge 12 Gauge 2-3/4in 3DE 1oz 7.5 Shot Size Shotgun Ammunition good for? The manufacturer thinks that it is good for personal defense target.Estate Cartridge SS12H1 7.5: Estate Cartridge 12 Gauge 2-3/4in 3DE 1oz 7.5 Shot Size Shotgun Ammo 25 Rounds