Quote:
Originally Posted by H Richard
Couldn't 222 mag brass be formed by necking up the 204?
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I'm pretty sure you're correct. I shoot a 6x47 Remington. It's an out-of-favor benchrest cartridge that is a 222 Mag necked up to 6mm. Some have said if 222 Mag can't be had, a 204 case is usable but it's a bigger stretch. So yeah, I'd think a 204 could be opened up to 222 Mag.