Montana X-Treme: Copper Killer 50 B.M.G. Solvent - 20 oz

MT X-Treme : MT X-Treme Copper Killer 20oz
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Industrial-Strength Copper Remover

The Western Powders ballistics lab fires tens of thousands of rounds a year and spends a considerable amount of time cleaning barrels. Created to speed the cleaning process and bring test barrels back into specification after extended shooting sessions. It's the top rated copper remover on the market.  Its unique buffering solution is completely barrel safe and contains no acids, amines or chlorides. Copper Killer is simply the best copper removing agent available for high volume shooters.