The high performance standard for game loads: Supreme High Velocity Double X Magnum Game Loads. These high velocity loads feature superior components, specially blended propellants and extra hard, copper plated shot that delivers game stopping pattern performance. For true magnum payload performance, nothing beats Supreme Double X Magnum Buffered Game loads as the ultimate force in knockdown power. Symbol: X12MXC4 Gauge: 12 Length of Shell: 3" Powder Dram Equivalent: 4 Velocity (Feet Per Second) @3 Ft: 1280 Ounce Shot: 1-5/8 Shot Size: 4