[quote=Sheister]Be sure the magazine and the ejection port will handle loaded rounds. The Weatherby is a long magnum round- same as the 300 H&H and 375 H&H. The 300 WM is a standard magnum round.
Not sure about the chamber, may need to ask your gunsmith or download the Saami specs to check it out.

Bob [/quote I agree, I think its a little more difficult than that I'm pretty sure it will have to be removed from the action to set proper headspace but I have been wrong before