I may have started the thread several years ago about the 284 in a Kimber. Or I at least asked the question on someone else's thread. If I recall correctly, the concern was the fat case didn't leave enough metal in the barrel-action junction.
I have one in a Ruger Tanger that has never been out of the box except to show and tell. Back on the day, Ruger put a decent hunk of walnut on their rifles. The rifle was given to me by one of my older hunting buddies because of our shared fondness for Rugers.