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  1. J

    IMR 8133 for Cheytac 375

    I was reading an old thread about substitute powders for Retumbo. One member asked the question: Has anyone tried using IMR 8133 for 375 Cheytac loads? Did not see any answers, so I would like to ask the question once more. Anyone using IMR 8133 to load 375 Cheytac?