I have a new unfired Weatherby Vanguard 300wby mag I am trying to load for. I am using Nosler once fired brass (in a different gun). Using a Redding press and dies. When full length sizing I screwed the dies all the way down until it made firm contact with the shell holder but the cases still will not fit in the chamber. When I examine the case it appears the die does not sIze it all the way to the belt. Appears to be a little more than a 1/16" that is not sized. Not sure if the problem is the diameter of case near the belt or if it is the shoulder. Either way I cannot go any farther on my die adjustment. I looked inside the Redding die and it doesn't look like it is made to size all the way to the belt. I am no expert and early on the learning curve so appreciate your help. Thank you