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But I'm trying to loosen it a bit. The factory ones iv brought are about half a thou over projectile size.

So as far as 22 cal, I need to size, over size say .2245 or expand .224 to .2245

How are you expanding the necks?
You could size but too tight. Fired case too big.
Iv sized a 6br to 22br but now need to expand the neck a little. I might instead get a mate to lathe out half a...