Magnum Quick Shots hold premeasured powder charges of up to 150 grs. of Black Powder or Pyrodex® equivilent or 3 Pyrodex® 50 gr. Pellets). Used with patch and ball, Maxi-Ball® or Maxi-Hunter®, the Quick Shot™ may be used with either a percussion or flintlock rifle. You simply flip open the waterproof cover. Pour the premeasured powder charge into the barrel. Drive the projectile into the muzzle with your short starter and seat it with your ramrod. The percussion cap (or priming charge) is contained in a separate chamber ready for instant use. (3 per pack). Works well with round balls, conicals or sabots.