Well Ray - no doubt the 430 gr conical will kill an elk. But so will the 54 PRB. I would not hesitate to drop the hammer on the biggest baddest bull out there with an accurate rifle and a PRB.
This almost parallels the argument of the .270 Win vs the .338 Win Mag for elk. Some say the .270 is too light. But again, its been killing elk every year since it came out in I think about 1954.
But we all are entitled to our own opinions. And BTW, ur right 53 aint that young. But I still got a few years on you. So ur still a whippersnapper....