Thread: #7 auto polish
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Old June 7, 2013, 10:31 PM   #11
TXGunNut
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Join Date: January 16, 2010
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I happen to know that when Dallas PD used a cement mixer to clean 38 Spcl brass they had a can of DuPont #7 nearby. Most of the polishes I use came along since then but they had some shiny brass back then.
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