I shoot a remington model 700; 270 winchester. It is a great gun, i've taken numerous deer with it and it is a flat shooting gun, but i wouldn't shoot any further than 400 yards with it, although personally i wouldn't shoot that far with any gun, i'm comfortable up to 300 or so. I've taken two bull elk with it, one was a spike, but the other was a big 6 by 6, dropped in his tracks. I upped the loads though for elk hunting.
My vote goes to the 270.