338 RUM velocity estimates


Well-Known Member
Oct 4, 2008
SW Montana
Just wondering if anyone could give me some ball park velocity estimates on a 338 RUM with 28" barrel, 1:9.5 twist with H-1000 and/or Retumbo

250 gr Accubond
and of course the 300 SMK

Thank you.
I'll agree with LTLR's estimates. I'd lean towards the high side of the estimates as 28" it 2" longer than the barrel on mine.

91.2 gr Retumbo gives me about 2750 FPS MV @ 50*F.
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