Jes did a .30-06 to 35 whelen for me on a M70 featherweight barrel. The work was great, great turn-around and the gun shoots very good, but bad judgement on my part for going with a featherweight barrel. The rifle is now somewhat muzzle light which I'd prefer the opposite and the recoil at the rifle's over-all weight with scope is really harsh, at least to me. I wish I would have used a standard grade (pre-64 M70) barrel instead.