Wanting a 270, I would build a nice 270 Winchester. On a #2 barrel with a top-of-the-line stock.
I'm going wit the #2b contour as I think that's the lightest Bartline will do in stainless. I'm thinking 7.5 twist. I already have a Wildcat Composite sitting in the closet waiting to be finished. The real blasphemous thing I'm contemplating is cutting the barrel back to 20" for suppressor use.
I have a M70 EW that I'd love to do similar with.
