I'm building a "light" hunting rifle/occasional range gun. Main focus is weight reduction. I want a Proof, but the twist rates available limit me to a 24" 9 twist sendero contour at 49oz. Ideally I wanted a 22" 9 twist light sendero at 44oz, but they only offer a 8.4 twist. I believe that will be too fast for my application since I plan to use 140gr bergers or Sierras. I also wanted the shorter barrel for maneuverability. My other option is a Bartlein in a #3 contour with a 9 twist. Advertised weight is 56oz at a 26" length. I wonder what the weight would be if I cut it back to 22", and had it spiral fluted. I would assume the 4" of barrel is a decent amount of weight, and the flutes would contribute a few oz loss as well. The prices will be about the same when all work is done to the Bartlein, so cost is negligible. Any advice or experience will be greatly appreciated.