If we skip over the discussion of which bear we are hunting, the 400 lb version or his 1000 lb cousin and we ignore bad shooting, something we have all done or lie about not doing, we can get back to the OP's question.
If you load the dang thing, have modest marksmanship skills, have confidence in the rifle and your ability to use it and match the bullet to the game, there are an extremely small number of anecdotal incidences to supply the exceptions to the idea that .30-06 Springfield is an entirely adequate firearm for hunting just about anything and everything.
The venerable ought-six is about as close to the fanciful "all-around" hunting rifle anyone could want. But then none of us want just ONE perfect rifle.......... It's easier to find the "perfect woman" or win the lottery than it is to live with one rifle. m2c


Why does a man who is 50 pounds overweight complain about a 10 pound rifle being too heavy?
SCI Life Member 4**