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Old December 25, 2016, 09:47 AM   #5
hodaka
Senior Member
 
Join Date: April 23, 2006
Location: South Texas
Posts: 2,010
USPA competitors do it all of the time. I once had some formulas saved but can't find them now. Perhaps Google can help. They are simple chemical salt solutions that interact with the brass to yield red, blue, etc. Wish I had them hand.

http://chestofbooks.com/reference/He...-Coloring.html

Courtesy Google.

Last edited by hodaka; December 25, 2016 at 09:56 AM.
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