I don't know that I've ever heard anyone saying the .270 was a better long range hunting round than the .308. Maybe for Antelope or coyotes, but that's it, and that's simply because it usually has a flatter trajectory, based on the light bullets and slightly higher velocity. Run equally weighted bullets through either and the .308 is going to gain the upper hand.

I know for a fact that I have never seen anyone place with a .270win at a long range bench rest or 1000yrd match I've been to. I have seen one .270Weatherby mag take a second in a BR production rifle match.

At many matches I've been to in recent years, the winner wasn't shooting a .308win either... .300mags are gaining popularity, and I've seen quite a few 6.5mm wildcats do quite well also. The .308win is basically the standby, it ain't broke, so why fix it?

As far as inherent accuracy goes, the .308 is outstanding, the simple fact that it's a short action does a lot for it. I'd be interested to see how the new .300WSM does in the long range arena, I've got a Savage WSM action I'm seriously thinking about tuning up for next season.