RE: .300 wsm...what bullets to use?
For deer they all work and accuracy really depends on what your rifle will like to chuck. I think I'd start with in the 165 gr area and then go from there. Nosler Partition should prove to be accurate as I have found very few rifles who won't fire them decently and no doubt it is proven biggame taker in the bullet world. For deer I personally like ballistic tips - shoot 150 gr(7 rem mag) Nosler BT's and they flop our big whitetails very nicely but they also leave decent sized holes in the body cavity...which is one reason I like them so much and I don't eat deer ribs anyway. They also are extremely accurate and of use for potential longer shot distances I may encounter.
Get a couple different bullet styles or brands and head out to the range. Let the rifle do the talking.