I went the Colt light rifle faux NULA route for my sons 270 and really like it. A Forbes or Colt light rifle would be a good donor. Barrett field craft too is an option. If building I would consider a Ti action like the Pierce. My 257 Bee is the Lipseys edition and it is anything but light. I have a light 25-06 but if I didn't I would be looking for a Left hand Forbs to have re-barreled by Melvin then I would agonize over the Weatherby or 6-06 but since I have a 6mm AI in a Basner stock the 6-06 would overlap it some. I would go for a 7 twist even with the Weatherby but supposedly a 1-8 will stabilize the 130 grain bullets.