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Bullet coating part II


jmorris

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Edit to add: link to Part I http://www.brianenos.com/forums/index.php?showtopic=170556&hl=

After going through the powder coating process and giving copper plating a try, after USPS lost the first shipment, I finally received a new batch of the Bayou bullet coating from Donnie, that he FedExed to me.

What you get is a two part mix and you add acetone, tumble and bake.

I just ran a small batch of 150, 230 grain 45's for the first run.

I mixed 5ml of the color, 5 ml of acetone and 1 ml of the catalyst. Adding about 1 tea spoon to the tumbling bullets and baking at 365 for 10 min. Let them cool and re tumbled them with another tea spoon of the mix and baking for another 10 min.

The tumbler I built is a paint bucket I found at home depot that is sort of D shaped, figured this would work for agitation, and uses disposable liners that are cheap so I don't have to worry about clean up.

I smashed the one at the center of the photo to see how well it stuck to the bullet and there were no signs of separation. Next test is to load them up and see about smoke and leading.

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Edited by Flexmoney
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Did a little "test" with a coated bullet beside an uncoated one on an aluminum plate with a torch below.

When the first bullet started melting, I removed the heat and it continued to melt (you can still see the stripes left from sizing though). The coating is thin in the grease ring and a little came out of there but the bottom remained intact.

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Edited by jmorris
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Ok, had a chance to shoot some today and at first wasn't too happy as it is clear that the coating was rubbed off in the rifling.

So I decided to see how they compared with precision bullets side by side. Kind of shocked that they did better than the Precision bullets that I have shot thousands of.

Guess I will try sizing some of these after coating, as that is what is recommended, if that doesn't work I might try a 3rd coat.

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  • 2 weeks later...

Multiple coats is the answer..... You might be surprised at the effort required to size them. I use a Star lune sizer and need to put a wax lubed bullet through every 6 or so to reduce the effort required and the stress on the Star.

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  • 2 months later...

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