I'm starting on a build and am taking advantage of the Rock Creek GB for a barrel. Going to be a 6.5x55. Will pack in a lot and don't mind carrying a heavy-ish rifle but don't want a monster. Thinking of 22" but not sure about contour; considering #2, 3, or 4 sporter. Looking to maintain accuracy as much as possible without getting too cumbersome. Will be put into a McMillan, either the HTG or Remington Hunter. Any input is appreciated.