View Full Version : Casting / Powder Coating thread
buckshotbarlow
08-07-2013, 19:55
I wanted to get a powder coating thread going so that we can compare methods and results. I ordered a powder coating gun and some colors as well as some new leather protective wear because my welding stuff is beat to hell. Specifically I am going to be building an accurate .30 cal round for both 300 blk and .308 if it works well, but I plan on coating pistol bullets as well if it is not too difficult to get good results. I think that everything gets here Friday, but I have a long weekend coming up that I could probably get some thrown and coated. There has been stuff brought up in other threads, but any methods / do's & don't do's would be greatly appreciated.
I'm waiting for the 300blk molds to come in stock from midwayusa, and then we'll start!!!
tmjohnson
08-17-2013, 17:43
I cast 1000 or so Lee 170-309 bullets, water dropped as i cast. Weighed all the bullets to 176 plus or minus 1 grain. I would say 80% weighed 175.3 to 175.5.
Fired up the Powder Coat gun. Used Harbor Freight black. I started water dropping right after I cooked the bullets. When I went to resize and add gas check, some of the coating on a few of the bullets flaked off.
Just my observation, but when Powder Coating rifle bullets don't water drop, pistol bullets not a problem.
Just thought I'd share my days events.
tmjohnson
08-21-2013, 12:44
Get toaster ovens at garage sale they are cheap. I was over cooking my bullets. I cook for 15 minutes at 425 degrees and all is good. Don't use Pam in excess it will absorb into your powder coat and screw your bullets up.
I drilled holes exactly so the base will slide down into hole, makes putting gas check on alot easier. Use reynolds wrap non stick tin foil that stuff is great.
I got powder at Cabelas in Sidney yesterday, so if it is not to hot I will shoot this coming weekend and post results
tmjohnson
09-01-2013, 09:42
My results
33351
Where are ya'll getting your powder coat from? I've hear of people having mixed results with the harbor freight stuff.
I'm going to try tumble coating mine with a mix of PC and lacquer thinner. BTW the powder coat I have is the Red from HF.
tmjohnson
10-28-2013, 15:11
I get the Powder Coating from Harbor Freight. The red and yellow work excellent in semi auto pistols. The flat black does have a little resistance but does function. I have read about the tumble coating and to me it is a lot easier to coat and put in oven. Biggest thing I have found is be consistent on coating.
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