Jim Carmichael wrote in his book The Modern Rifle years ago that you could run 30-06 brass through a 240WBY sizing die and it would give you 240WBY brass with a swaged belt on it. He reported he got a lot better accuracy with that brass than with factory.
That's pretty common knowledge among 240 shooters, at least those that handload much... So, where are you going to get those belts today?
People think that if you shoot a Wby., then you must have money! Some of the comments here reflect that... Did you notice that i'm NOT shooting a Wby. gun?? I started out with a used gun, and Parker Ackley gave me a deal on bbleing it, as we hit it right off when i first contacted him. And spent a lot of time talking balistics on the phone and when i visited him.
As for Carmichael, i remember an article he wrote really condemming a couple guys who flew around Kodiak in a super cub, spotting bears. When they found one, they landed/stalked/shot the bear. Then he went on further in his article to tell how he had hired a guide with a nice big boat. How they sat in luxery, in a nice heated cabin, had great food and hot coffee as they cruised Kodiak and surrounding islands, spotting big bears! Finally they spotted a big bear and cruised over, stalked/shot the bear... And what a GREAT "hunt" it was!!
Well, i for one can't see the difference?? NO it's not legal to use the plane, but it sure as hell wasn't any easier than his "boat hunt", and i told him exactly that! He just got mad at me, and figured he had hunted, and the other guy didn't! Both were laszypricks the way i see it!
I hunted Kodiak and the surrounding islands many times, i know what it's like to hunt bear there, and neither were fair chase hunting in my book!