Pro-Shot 1-Step Bore Cleaning Solvent and Lubricant is excellent for removing lead, powder, plastic and copper fouling. Repeated use of Pro-Shot 1-Step Bore Cleaning Solvent and Lubricant protects the bore and lessens fouling and residue buildup. Pro-Shot 1-Step Bore Cleaning Solvent and Lubricant cleans and eliminates stiff actions, jamming, and loosens rusted parts. This solvent contains rust inhibitors and special additives penetrate the metal and provide a corrosion barrier for superior rust protection. This synthetic formula is based on a unique blend of non-hazardous and environmentally friendly ingredients.