I've hunted elk with a .270 Win for many years most of my elk have been under 30 yards, a few as far as 400 yards. I wouldn't recommend the 270, 308 or 30-06 for 500 yards shots, particularly if the hunter hasn't done this in the past. I think the 7mm Mags using 160g or heavier bullets and the 300 Mags shooting 180g or heavier bullets are a better choice. The shooter better know how to calculate elevation vs line of sight distance and there better not be much wind! The 7mm Mag in a reasonable weight rifle doesn't kick much at all in my opinion.