Evidently you missed 458Win's signature line: "Anyone who claims the 30-06 is not effective has either not used one, or else is unwittingly commenting on their marksmanship."
You may not know who 458Win is. If you don't, I can fill you in--but for now will just say that he's an Alaskan Master Guide who has used more than one .30-06 to stop charging brown bears. Is it is his favorite cartridge for the the job? No, that's the .458 Winchester. But he is quite happy to guide brown bear clients (and he has regularly been getting them BIG bears for decades) who choose to bring a .30-06. That's because, based on long experience, he's pretty sure they'll shoot well--unlike some of the clients he's guided who bring rifles in more "appropriate" cartridges.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
