Powder coating and sizing

4stringdude

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Jun 29, 2025
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I have been powder coating cast bullets for a while. When you powder coat, do you size before or after? I have been sizing after the PC, but I'd like to know what others might do.

I do think powder coating is a great way to reduce leading. I also think it makes the bullets look really nice. I've done pink, neon orange and silver metal flake.
 
I regret I don't have any of the silver available to post pics. It looks really nice. And it's great for werewolves!

I have not seen any damage from sizing after PC. But, I'm only sizing down a couple thousands.

Powder coating is pretty easy to get started with. I watched a few YouTube videos and gave it a go.

I purchased my powder from Eastwood: https://www.eastwood.com/
I use the "Cool Whip bowl" method for getting the powder on.
I bought a toaster oven at Goodwill. You definitely want to do the heating in the garage or other well ventilated area. The plastic smell can be strong.
I place the bullets on a silicon mat before going into the oven. They don't stick to it like they would with metal pans.

Lots of people us the same method to paint their fishing jigs.

These are .358 sized to .356 to fit my 350 Legend.

. PC_Bullet.webp
 
Question about powder coating:
What does it do that tumble lubing with Lee Liquid Alox (or equivalent) does not do?
Besides looking a lot better.

I would think the Alox would provide the necessary fuctions better, even if it is ugly.
 
I have no experience with Alox. So, I can't respond to your question.

I know that the powder coating greatly reduces leading in your barrel. I don't even use gas checks when powder coating. However, I do not push them at magnum speed.
 

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