I just picked up a 300WSM. Its a compromise rifle to be sure, but I like it already. Debated the 338LM, 300WM, 6.5/284, and a few others. For me what ended up making the difference is cost per round. Recoil was a consideration, but with brakes/cans/stocks almost any round can be tamed. Barrel life was a consideration for sure, but thats just part of it. I think asking what is the best round for X distance is like asking if blondes, redheads, or brunettes are better in the sack, its all subjective and dependent on a lot of variables.
Mike your welcome to shoot the gun sometime and see how you like it.
Solid Brother! I will be keeping this in mind... and you will be getting a call here tomorrow