<https://forums.sassnet.com/index.php?/topic/322814-cleaning-out-leading-with-a-copper-jacketed-round/#comment-4174088>
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"First of all its needs to be soft black powder lube, not just any lube. I said the bp lubed bullets shot with real black powder will not lead your barrel. I already said it would not clean out a barrel that was already leaded.\n \n"
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