Copper Cutter is specially formulated to remove: copper, lead, powder residue and plastic wad fouling from bore surface with very little scrubbing! Copper Cutter is a Water Based - Ammonia Enhanced product and it will remove all lubricatin or oil protection. Care should be taken to re-lube all parts cleaned with Copper Cutter to rusting. Always follow up with a Slip 2000 Gun Lubricant to displace any moisture left behind from cleaning. This will not only protect your weapon but it will reduce your next cleanup time. Product Features Rifles Shotguns Pistols Revolvers Product Specifications Keep the muzzle end pointed down to prevent cleaner from running back into the actions or chambers Soak a patch, brush or mop with Copper Cutter and run through bore. Follow this with a dry patch Repeat until dry patch come out clean After patch comes out clean, it is very important to run a mop or patch with a Slip 2000 Gun Lubricant on it to completely recoat bores with lubricant protection