Winchester Ammunition Defender, Supreme Elite, 410 Gauge, 3 Buckshot, 3 Defense Discs, 12 BB Pellets, 10 Round Box S413PDX1 Highly effective in both 410 compatible handguns and shotguns, the 410-gauge PDX1 Defender ammunition features a distinctive black hull and black oxide high-base head; it combines four plated Defense Disc projectiles and 16 pellets of plated BB shot. The result is the ideal personal defense load for short-range engagements with the performance needed to stop threats.