Where I have lived for 40+ years conditions of terrain and vegetation make a shot over 100 yards extremely rare. Sure, I have hunted over a few powerline rights-of-way and a few fields where you maybe, might, possibly get a 400 yard shot. But in all that time, even under ideal circumstances, the longest realistic shot I have ever been offered was no more than 300 (and he walked in to the woods before I could pull the trigger), and the longest shot I have ever taken was right at 240. That one was done with a 1896 Swedish Mauser 6.5 that I had cut down to an 18" carbine. The next-longest shot I've taken was 225 yards, and the rifle was a .30-30 Marlin 336. This in over 200 deer killed.
I own a .270, and on rare occasion -- maybe once every two years, when I know I'll be in an open area -- I will carry it. But honestly, I know for a fact that any deer I see to shoot at will, 99% of the time, be closer than 100 yards. But who knows? Maybe one day I'll be invited to hunt out West where the .270 won't be too much gun.