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  1. Dealing with a large chamber & groove dia.

    The 45/70 Govt.
    Hey Duke Nukem; I looked at the Buffalo Arms custom expanders as you suggested, and after talking to their friendly rep, I learnt their normal 'dies' are tapered, leaving only the last/top portion of abut 1/8" at the max listed dimension. Discussing the matter further, I was instructed to look...