RIO Ammunition Top Target 28 Gauge 3/4 oz 2 3/4in Centerfire Shotgun Ammo 25 Rounds. These game loads come in 16-gauge 28-gauge and .410 bore sizes to suit your particular weapon. They measure 2_ or 3 inches in length and deliver an impressive muzzle velocity of up to 1300 feet per second. If you are in the market for a heavy-duty and reliable game load look no further than the Rio Heavy Field line of sub-gauge game loads. These game loads are packed with up to 1 1/8 ounces of #6 7 8 or 9 shot to ensure tight shot patterns each and every time. Specifications for RIO Ammunition RC288 Top Target 28 Gauge 2.75" 3/4 Oz 8 Shot 25 Bx/ 10 Cs: Manufacturer: RIO Ammunition Gauge: 28 Number of Rounds: 25 Shot Size: 8 Shell Length: 2 3/4 in Muzzle Velocity: 1300 ft/s Shotgun Shot Weight: 3/4 oz Primer Style: Centerfire Package Contents: RIO Ammunition RC288 Top Target 28 Gauge 2.75" 3/4 Oz 8 Shot 25 Bx/ 10 Cs RIO Ammunition RC288: Top Target 28 Gauge 3/4 oz 2 3/4in Centerfire Shotgun Ammo 25 Rounds