Offers critical penetration; 12 Gauge for long range engagement; Impressive expansion; Notable velocities at various ranges thanks to Winchester's proprietary bonding process; Have created a self defense load that exhibits controlled expansion and a higher weight retention; Plated 00 Buck - Massive shock and compensates for aim error; 1 oz Rifled Slug - Optimum penetration and knock-down; Grex Buffering - Tighter patterns; Loaded in black hulls with a black oxide high-base