I can't seem to find a good answer to my question. I've got a .300-.221 AR thats just fine. Reloading
for it with Redding dies and cutting down LC brass and forming with a Redding form/trim die also.
I am looking at a 300 Blk barrel on the group buy through GS but need to know whether I need
the AAC Blk dies or not. Can the 300 Blk be loaded safely with the 300-221 dies or will I need to
purchase the new dies?