300 rum 180 grain ttsx retumbo load?

Discussion in 'Reloading' started by williamsc31, Jun 21, 2011.

  1. williamsc31

    williamsc31 Member

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    Jan 21, 2011
    What are y'alls guys starting load and max loads and velocities with 180 gr ttsx with retumbo powder?
     
  2. backwoods83

    backwoods83 Well-Known Member

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    Jan 8, 2011
    Imo retumbo is to cold for bullets less than 200grns, you will use over 100grns of retumbo with a 180 most likely and can accomplish the same with about 12grns less Imr4831 or 9-10grns less with 7828 or H1000 plus you will have a tighter ES by not using retumbo, but if you must you will probably use about 102grns, starting at about 96-97.