Originally Posted by Landrum
Let's say that it was going to be a custom rifle throated to your specifications (minimal freebore) and you planned on hand loading for it.
Landrum

I personally wouldn't want to do that because some unsuspecting soul may inadvertenly fire a factory round in it! The factory Weeatherby ammo is high pressure stuff that needs the freebore.
So my picks in order would be the Weatherby with freebore, 270 WSM, 264 Win.