338 rum load data needed

Discussion in 'Reloading' started by tayhot, Feb 15, 2012.

  1. tayhot

    tayhot Well-Known Member

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    Looking for loads for 338 rum, specifically for 300 gr Bergers. I have A few powders to use, retumbo, h1000, and 7828
     
  2. bigngreen

    bigngreen Well-Known Member

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    I'm loven 90.5 gr of Retumbo right now for just over 2800 FPS with a 300 OTM in a 28in barrel.
     

  3. royinidaho

    royinidaho Writers Guild

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    Hmmmmm, two inches of barrel approach ~32FPS/inch not considering difference between Retumbo and 50 BMG and slight difference in charge weight and rifle/barrel differences. Interesting!
     
  4. tayhot

    tayhot Well-Known Member

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    Thanks.
     
  5. Outlaw6.0

    Outlaw6.0 Well-Known Member

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    I'm running 90.0 grns Retumbo w/ 300 SMK. (sorry, Bergers are too long for my mags). Velocity for 5 measured 2780fps w/27 bbl.