i agree with this 100%. well said Locutus.I use the .30-06 for everything from antelope to moose. It's never let me down.
It may be a little heavy for deer, but it will do the job.
IMHO, cartridges like the .300 and 7mm magnums are gross overkill. My biggest objection toi the magnum is that thery tempt inexperienced hunters to take shots that are out of range, and cause a lot of wounding of game.
The .308, 7-08, .260, .25-06, .257 Roberts, 6mm Remington, .243 are all exccellent deer cartridges to 300 yards.