I think I've asked this before but don't know if I ever got a response. Is there a reason DT doesn't offer a 18" 6.5 barrel? I'm looking to go Covert now and saw they only had 308 in 18".

What ballistics would I expect between a 6.5 and a 308 in an 18" barrel? Would I be able to get out to 1000y with either in 18"?

What ballistics would I expect between a 6.5 and a 308 in an 18" barrel? Would I be able to get out to 1000y with either in 18"?