I asked and answered this same question ~30 years ago. I took a pre-64 model 70 action, attached a Shilen SS match gauge #2 barrel and placed it in a Chet Brown stock. Then I took a Leupold 2.5x8 and held it in place with a set of Control rings. The result has been 16 elk in the freezer with some hanging on the wall. Oh yea it was chamber in .300 Winchester Mag.
