Re: where to buy a 300 RUM shellholder?
RCBS #38 is the RUM shellholder.
Tim,...I slightly ground out my opening on my autoprime,..and the RUM brass goes right in. The rims of the shell holder are still present to square up the case,..so I don't foresee and crooked primer seating and havn't noticed any performance degradation as of yet. Just a hint.
You try to get closer to the target,..and I keep trying to get further away.