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Old April 29, 2013, 08:51 AM   #4
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Join Date: June 6, 2004
Location: Rocky Mts
Posts: 838
What you're seeing may be copper fouling, not rust. Copper looks orange-ish in a bore. Try a good copper removal cleaning, maybe using a special copper solvent, and follow their directions.
"Far better it is to dare mighty things, to win glorious triumphs even though checkered by failure, than to rank with those poor spirits who neither enjoy nor suffer much because they live in the gray twilight that knows neither victory nor defeat." -Theodore Roosevelt-
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