Originally Posted by Riflehunter
So how does the brass turn out when making .222 from .223 as I haven't done it yet? Do the resulting cases last a lot of firings without the necks splitting, and is the neck thickness right etc?

Its called Annealing it...

If your rifle won't chamber them, due to neck thickness, then neck turn them.

Rifles I've done it in, have chambered in the rifles my buddies had.

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