The question that started this thread wasn't, "What would you use if you ever hunted brown bears? Instead it was: "When will .30-06 not work?"
Please explain how your post has anything to do with answering that question.
Not trying to be a smart-ass, just trying to stay on point.
Then I mis-spoke and (not trying to be a smart ass either) I should start a thread "when will the 22lr not work"?
A good principle to guide me through life: “This is all I have come to expect, standard lackluster performance. Trust nothing, believe no one and realize it will only get worse…”