evaporust, plug breech plug fill barrel with evaporust leave sit for a day or 2,empty out and clean barrel.. then oil with Barricade and other good gun oil.. when ready to shoot swab barrel with dry patch then a patch soaked in 90 percent rubbing alcohol then dry patch till dry, pop a cap or 2 then load.
Dont get evaporust on bluing will discolor or eat it off.
