Pre-Sizing for PC.

[rintinglen]

I don't PC my boolits, but my brother, who is just starting to get into cast, is thinking about it. I want to send him some booits for his 327, but he was interested in PC'ing them. I want to send him some boolits pre-sized for coating so that he will not have to have to size them. What is the normal thickness for a Poly Coat? What size should I make the boolits to allow for the thickness of the coating? The target goal is .313, I have .310. .311, and .312 sizers. What would be the best choice?

[popper]

Send them unsized, he can size them after coating. Don't use any lube (other than plain H2O) in the sizer if you do it.

[Drew P]

Coating can add .002-.005" in diameter. Hard to say until it's baked.

[reddog81]

It depends on how thick the coat is. I'd go with .311 if the goal is .313. I think it's better to be a little bigger than too small

[rintinglen]

He doesn't have a sizer for 327 size boolits. The goal is to size then coat, then load, then shoot.

[runfiverun]

I gain about .002 with my method of powder coating.
but I coat and size just to make sure.