RE: going to the grave yard?
It is well entrenched and like other said it won't be a factor in our time, the old standards are still going strong today even with the new choices. Heck you can still buy 303 british ammo and not one manufacturer chambers this round today.
I assume your talking bblack bears, if so anything 140 and up will be fine. Contrary to some peoples belief bears roll over an die pretty quickly. However they do have dense hides and tough shoulder blades, so I wouldn't suggest a BT in a 7 mag when hunting them but anything from 150 - 175 gr power point type up to premium ammo like 140 - 160 failsafe, nosler parts, barnes x, etc will work just fine on blackie's.