Saturno,
I am not in conflict with your statements. The 06 with the right bullets is a fully capable bear round though it should be considered a minimum. BTW that was Phil Shoemaker who made the comment about the .30/06 and accuracy.
For every big bear killed with a .30/06 post I'm sure we can find one of a big bear killed with a .375 or .338 or 8mm Rem Mag or whatever. It comes down to personal preference and my preference has been developed from having been in the Jesse bush with agitated and aggressive elephants and having spent my fair share of time cruising the alders in big bear country.
The .30/06 is a great round I carry one often. The last elk I killed with a . 30/06 took a 180 gr TSX through the shoulders with a clean exit and it fell over dead in about 3 seconds it was at 233 yards. It wouldn't have died any quicker if it had been shot with a .600NE. My op explains my thoughts on the subject pretty well I thought. If you want to hunt big and nasty stuff with a .30/06 get after it. Have fun take lots of pictures post them here and write a good story.
I agree 100% and it is exactly what I was saying as well.
No I'm not planning to hunt nasty creatures that bite back no matter the gun.....I'm too chicken!