rcw3
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Toney
I think you will have trouble pushing the shoulder back to leave you with a .350" neck in one shot (you may need multiple forming dies just to do that). The 6mm Super LR has a neck of around .321" and I consider I am just about at max with one die doing that. My suggestion is experiment first and make sure you can do what you want to do before you assume you can do it without issue.
Robert
I think you will have trouble pushing the shoulder back to leave you with a .350" neck in one shot (you may need multiple forming dies just to do that). The 6mm Super LR has a neck of around .321" and I consider I am just about at max with one die doing that. My suggestion is experiment first and make sure you can do what you want to do before you assume you can do it without issue.
Robert