240SMK 300RUM and retumbo?

Discussion in 'Reloading' started by jcoop, Oct 9, 2009.

  1. jcoop

    jcoop Well-Known Member

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    Oct 22, 2008
    Is it possible to use retumbo with the 240gr SMK in a RUM, or is it too fast burning? I am using us869 currently with good results. However my brothers rifle does not like the same combo. We have some retumbo and wanted to try another combo but can not find any info on the combo. Where to start?
    I can not find any H1000 or 50bmg locally or I would just try that.
    Any help is appreciated.