I agree completely...a run of the mill bonded 150 or 160 gain bullet will serve you well, I wouldn't "hunt" griz with it, but it would certainly kill one... I'm sure many have fallen to 7mm Rem Mag.
By the numbers, for deer and elk use.... the high BC 162 and 168 grain hunting bullets ARE better, at long range.... and they may work OK at close range, but they'll make a mess doing it.
For general hunting at any range the 280 Ackley should be used for (600 and less)...it's dang hard to beat a Nosler 160 Accubond or 150 Swift Scirocco... with the Swift being the slightly better bullet all around (better BC, expands at lower velocity, and holds together at close range).... but they're expensive.