I've got an 18" MGM .260 Rem barrel for my Encore in 1-8" twist. I know MGM will rechamber one of their barrels for $100. What different 6.5 cartridge would you go to and why? I'm drawn to the 6.5-284 because it has more oomph than the .260 Rem and brass and dies aren't hard to come by. Other suggestions? I've thought about 6.5-06 AI and 6.5x55 AI also, but are either of those really going to deliver more than the 6.5-284? I don't really NEED to make a change, but it's fun to think about.