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Old 04-16-2018, 12:19 PM
stansdds stansdds is offline
Join Date: Apr 2007
Location: Virginia
Posts: 604
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Looks like copper fouling to me. Run a patch soaked in copper solvent through the barrel. Let it sit for about 5 minutes, then run a dry patch through the barrel. If the dry patch comes out with green streaks on it, that's copper. I don't get too worked up over copper fouling, unless I also plan to shoot lead bullets through the firearm.
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