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Old December 9, 2012, 08:50 AM   #9
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Join Date: May 29, 2008
Location: now living in alabama
Posts: 2,433
Copper dosnt cause rust in the barrel. Powder can contain salts, but most dont. Powder does retain moisture and will speed the rusting process.
No such thing as a stupid question. What is stupid is not asking it.
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