Brenneke Special Forces Short Magnum 12 Gauge 1 1/4 oz 2.75 in Centerfire Shotgun Slug Ammo Sl122Sfm. 75" 1 1/4 oz Slug Shot - Threats come in many forms these days sometimes driving a vehicle sometimes hiding behind a wall. Urban and CQB situations require a unique projectile - one of unequaled penetration and stopping power at medium ranges. The massive frontal area exceptionally hard alloys and distinctive Brenneke weight forward design of the SFSM will penetrate many vehicles doors even some walls putting an end to the threat. Specifications for Brenneke Special Forces Short Magnum 12 Gauge 1 1/4 oz 2.75 in Shotgun Slug Ammo: Manufacturer: Brenneke Gauge: 12 Number of Rounds: 5 Shell Length: 2 3/4 in Muzzle Velocity: 1418 ft/s Application: Self-Defense Included Accessories: None Primer Style: Centerfire Shot Size: Slug Shotgun Shot Weight: 1 1/4 oz What is Brenneke Special Forces Short Magnum 12 Gauge 1 1/4 oz 2.75 in Shotgun Slug Ammo good for? The manufacturer says that it is good for self-defense.