450 bushmaster

  1. C

    Reloading for 450 Bushmaster

    Hey, I just got dies for my Ruger American in 450 Bushmaster and had a few questions. I read in the Hornady manual that this round headspaces on the case mouth and heavy crimps should be avoided so that excessive headspace is not created. Should I avoid or minimize chamfer on the mouth? Can it...

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