Federal Ultra Shok 10 Ga. 3 1/2" 1 1/2 oz, #BB Steel Shot Speed and power is what it is all about. With Ultra Shok High Velocity Steel you have got the fastest steel load on the market, that is quicker to the target for shorter leads at longer ranges and harder hitting on impact. Specifications: Mfg Item Num: PW107BB Category: Ammo Shotshells Gauge: 10 GA Type: Steel Length: 3 1/2" Ounces: 1 1/2 oz Shot Size: BB Muzzle Velocity: 1450 fps Rounds/box: 25 Rounds Per Box, 10 Boxes Per Case Drams: N/A