The late great Col. Townsend Whelen once said, "The 30-06 is never a mistake." I agree. I've probably used the 30-06 more than any other cartridge in roughly 55 years of hunting. Many years ago, I gave up on lighter bullets in the cartridge and settled on two loads, worked up to basically hit the same point of impact or very close to 250 yards.I use the 180 gr. Sierra Pro-Hunter for generally deer sized game and the 180 gr. Nosler Partition for elk and similar animals. So far, this has worked just fine for me and I see no reason to change. Murphy" second law, "If it ain't broke, don't fix it."
If shots in your general area are on the short side, say 150 yards or less, I might look and the Hornady 180 gr. round nose Interlock as that would handle both species of game. I have a brother-in-law that shoots the 30-06 exclusively with Winchester 180 gr. Power Point round nose bullets and will use nothing else. He's been hunting almost as long as I have and shoots everything from mice to moose with that load.
With that said, there are no flies on the .308 and lately I've ben using one for deer with a stiff load of W-760 and the 165 gr. Speer Hot-core. Not the fastest load in that rifle but I would not hesitate to use it on deer, Black bear or even elk if I was within 200 yards.
Personally, if I were hunting deer and Black Bear in an area where shots would normally run to 200 yards or less, I'd seriously look at a Browning BLR in .358 Win. The one I have is surprisinly accurate with the 200 gr. Hornady round nose and spire point bullets and the few deer I've shot with it were literally DRT, bang/flop dead on the spot. I would have no qualms using that load on a bear but would rather have a 225 gr. bullet for them.
Where I live I can get a bear tag for the area I'm hunting elk and my rifle of choice is the .35 Whelen. Serious smackdown power there.
But that's me. I see why Elmer Keith liked the round. It just plain flat out works.
Not to get too far OT, but I read Hawk's article on O'Connor. I get the impression he did not like Elmer much. Too bad.
To get back on point though, go with whatever you like. If I was restricted to one rifle of everything, I'd probably go with the 30-06 and never look back.
When Jim Carmichel took over Jack O'Connor's job at Outdoor Life, he asked Jack what cartridge would he go with if restricted to one rifle and cartrdige for all North American hunting? Without hesitation, Jack said, "The 30-06."
Pretty mucch says it all.
Paul B.