Nitro Solvent is specially designed for the serious skeet and trap shooter. It neutralizes the corrosive acid residue built up from the plastic shot shells. Heavy duty solvents quickly remove leading powder residue and metal fouling for a sparkling clean bore. Spray can ends loss of effectiveness due to evaporation of solvents and ends contamination due to dirty particles. Maybe harmful around painted metal plastic synthetic stocks or varnished stocks. It is recommended that the firearm be re-treated with G96 Gun Treatment G96 Gun Oil or G96 Synthetic CLP Gun Oil after use.DIRECTIONS: Spray onto patch. Push slowly through bore from breech end and out through muzzle. Swap with another saturated patch working both ways. Then push through a dry patch - rub well. Change patches until patch comes out perfectly clean. It is recommended that the firearm be re-treated with G96 Gun Treatment G96 Gun Oil or G96 Synthetic CLP Gun Oil after use. Always wipe out bore before firing.