Sure it'll work but it raises the question of why you got a .338WM if you're only going to shoot 200 grain bullets out of it? The .300WM with a 200 grain bullet would have been a more accurate combination with similar energy. Personally I feel that even the 225 grain is a bit enemic in the .338WM which I feel should be shooting a 250 grainer to realize it's full potential. I even go up to the 275 grain Speer HotCor in my .340Wby, but that's JMHO.