I believe you will need a large shank action. The issue is the thinness if the barrel at the chamber with the wider WSM series. Go a bit too hot, or a bit of metal fatigue, and the barrel can let go at the chamber. This occasionally happened when 1917 Enfield barrels were rechambered to 300 H&H or improved versions of same.
Too risky. Try to find a large shank action.
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