My 270WSM uses 71gr of Retumbo to push a 150gr Berger at 3160fps. Not the same as a 300WSM, but Retumbo(or ADI 2225) should do the trick.
My 270WSM uses 71gr of Retumbo to push a 150gr Berger at 3160fps. Not the same as a 300WSM, but Retumbo(or ADI 2225) should do the trick.
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