Hello

Has anyone posted a "how-to" on forming 9.5 x 57 brass? I have a set of forming dies from North Devon Firearms Services (UK firm, no longer trading) and my success rate is not good. I've tried mainly forming from .30-06 and get a lot of split necks. I've also tried 8 x 57 but get very crooked necks. I must be missing something I think. Do I need to anneal the brass at any stage?

Thanks in advance

Andrew