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Old June 30, 2013, 11:41 PM   #2
Dixie Gunsmithing
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Join Date: April 27, 2013
Location: Ohio
Posts: 1,923
Actually, I sent in the solution to this years ago, to Brownell's, and it is in Gunsmith Kinks 3. You can do it with cold blue, or the kind Brownell's has, as I accidentally stumbled upon it while cold bluing a part. What you do, is completely wet the part with isopropyl alcohol, making it puddle on the steel, and then, using a steel punch or screwdriver, you dip it in the cold blue, then onto the part within the puddle of alcohol. Something between the drop of cold blue, and the alcohol, makes it mimic case hardened color, and you use the punch to sort of make the patterns by moving it around. However, you should apply some clear polyurethane over it, once done. Take a look at Brownell's Gunsmith Kinks 3 for further details.
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