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View Full Version : Montana Copper Killer



paladinO6
December 5th, 2011, 04:14 PM
Anyone use this product?? If so, your thoughts please. I wear Hoppe's 9 for aftershave, so loyalty statements don't help. Looking for something to really clean the copper fouling from the bore. I use Butch's Bore Cleaner, but I'm looking for something that does a better job more quickly. :usaflag:

bcrtops
December 5th, 2011, 05:18 PM
Industrial strength ammonia