PowerBelt copper-plated PowerBelts have become the most popular muzzleloading projectiles since the roundball and truly are "the bullets that made sabots obsolete." They are #1 for a reason, and if you don't believe it, ask any hunter who has shot them. The thin copper plating greatly reduces bore friction for higher velocities - while still allowing for optimal bullet expansion within the rifling grooves. FeaturesSnap-on plastic base produces a perfect gas seal for consistent pressures and superb accuracy Copper jacketed bullets are easy to load and require minimal cleaning Easy to load and clean up after (unlike conventional sabots).