I built one on a blueprinted 110 Savage action,used a Shelin 28" match grade tube with a 10 twist. This thing shoots one ragged hole groups @ 100yds. Boyds stock carefully massaged and bedded. Using the the GS Custom 85gr HV bore rider bullets getting upper 42's for velicity and no pressure signs. Have taken 4 deer with it so far the farthest so far, was 337yds, the closest about 45yds. All DRT and the damage is something else. Have to shoot quarting away shots if I want the shoulders. This thing is like an extension of though out to 400, my 8yo grand daughter can hit a paper plate taped to the gong at 440yds. The Witt Machine clamp on break makes this 9lb beast so pleasant to shoot. With the speed and damage it does, I think I want to go take a Buffalo with it somewhere this winter.