This might be a slight digression, but I think it's time for a dedicated book or two - on the "great" .458 Winchester Magnum.
Surely, there is both enough talent and experience present here in the persons of Ron and Phil to produce at least one magnificent book dedicated to the .458 Win - each from their own experiences and perspectives: One more technical and the other more experience oriented. Not intended to suggest any lack of experience and knowledge on the part of either of these gentlemen.
Lacking a single collaborative book, two might be better still!
And this is NOT intended to ignore the excellent contributions by others to this thread who show both knowledge and experience in regard to the .458 Win.