Engineered to maximize terminal ballistics as defined by fbi test protocol, defender ammunition provides maximum stopping power for the ultimate in personal defense.Winchester's innovative bonding process welds the jacket to lead core for improved penetration, 1.5 x expansion and the proven performance you rely on when the stakes are high.Gauge: 20 GaugeLength: 2.75"Ounces: 7/8 ozShot Size: 2Muzzle Velocity: 1145 fpsRounds Per Box: 10Boxes Per Case: 10Application: Home DefenseHazair: Yes