I would think a 1-10 would work if you were anywhere near 2500 fps and I would think a WSM would get you pretty close to that dependin on barrel length used.
That said, just to make sure in all conditions, it would not hurt at thing to go with a 1-9 twist if your rifle will be working in the 2200-2500 fps range. Even if its a bit more then needed, it will not effect accuracy any.
Kirby Allen(50)