Mig25, whoever told you all that stuff knew absolutely nothing about old time hunting, or else he was just "pulling your leg."
He was actually "pulling" George Landreth's "leg", who won the Weatherby Award and pioneered hunting in Mongolia, there's an excellent write up by Landreth in the book "Big Game Hunting Around the World" of his opening hunting in Mongolia.
I've other correspondence with Roy Wade, Co owner of the Nosler Bullet Company who told him the only thing Nosler succeeded at was losing money.
While he considered Landreth and Wade friends, I don't think he actually knew Roy Weatherby, but I have correspondence from Roy Weatherby saying "I've sent 4 boxes of 139 grain loads to such and such train station under your name".
My Grandfather wrote several seemingly rare books that I am trying to find. He has an entry in the B&C 1939 Records of Big Game, which is very early. I'd consider the stories authoritative, but of course I wasn't there.