I got some RWS 7x57 brass to make some good 6mm Rem and 6mm AI brass on close-out at Natchez. I have done this before with Norma brass. The RWS has a rim too thick to fit into my shellholders. I have a couple of different ones that fit the 0.473 case head (Lee, Redding, RCBS) but it want go into any of them. How on earth do you turn a shellholder down? Are there special shellholders for this thicker rim brass?
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