The Thompson/Center T-17 Foaming Bore Cleaner is specially formulated to clean and neutralize harmful fouling in your rifle s bore. Designed for use with traditional black powder and black powder substitutes, this powerful foaming solvent penetrates deep into fouling, loosening even the toughest buildup without the need for brushing. It also effectively removes plastic, copper, and lead deposits that can impact accuracy. Easy to use, simply spray the foam into the barrel and allow it to sit for about an hour while it works. Once complete, wipe the bore clean and follow up with T-17 Seasoning patches for added protection. The cleaner leaves behind a micro-thin protective film to help prevent rust and corrosion, keeping your firearm in top condition. Product Details Type: Foaming aerosol bore cleaner Size: 7 oz can Application: Black powder and black powder substitute firearms Product Features Cleans and neutralizes harmful bore fouling Foaming action penetrates and loosens tough buildup Removes plastic, copper, and lead deposits Reduces need for brushing during cleaning Leaves protective film to help prevent rust and corrosion Simple spray-and-wait application