I have only been reloading for a couple of years, mostly pistol and some 223/5.56 for the ARs. I am buying a 300 AAC upper and want to start reloading for it as well.
I am confused about the process of forming 300 AAC brass from 223/5.56 brass. I am looking at a set of Forster dies (full length sizing, Seating). Will these dies expand the case neck from a .22 to a .30? Or, do I need to purchase a seperate case neck expander, expand the neck then size and trim the cases?
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