The Cash Manufacturing Universal Rifle Black Powder Capper is called the best rifle capper in the world. Holds approximately 75 caps. Works with any caps except 1055 caps are about .030 taller than any other caps on the market and do not work with these cappers. Works on rifles or shotguns. WILL NOT work on revolvers, but may work on some inline action rifles. Simple to operate, even with your gloves on.FeaturesHolds 75 CapsWorks on Rifles or Shotguns3 9/16" x 1 3/8" x 13/32"