So I was thinking I have a 308, a 7mm I'm going to chamber to a saum, and I can't see a reason to have 6.5 except if I want a cartridge for ranges to around 1500 and less that's cheaper then saum.

That being said, Im trying to figure if I do buy another barrel (I don't even have my 7mm yet), then what should I chamber it too. 284, creed, .260? It's a short action and I've heard 284 won't fit without seating deeper, but I use AI mags and they can be modified for an additional .040 clearance