If I necked Nosler Custom 280 AI brass up to .338, how much would it shorten the case neck? I have been thinking about making a variation of the 338-06 based on the 280 AI case. It seems to me that it might be pretty slick to set it up so one could use the Nosler brass necked up with no other changes. I have never wildcatted anything before, though, so I don't know much about doing this. Any of you experienced wildcatters have any thoughts on this idea?