I am looking to the time when Remington stops production of their 30 Remington AR brass. It has an original case head size (.496) and I can find no other case that has this size head. The body, just forward of the extractor grove is .500. I have found that there are accouple of cases with case heads slightly (.506) larger that can be turned down to the proper size but the body diameter is only .4703.
My questions to this group are "do you think the smaller case could possibly fireform without splitting?" "Or will this much expansion leave a weakened case?"
Thanks for your help.
DH