Hi. I am very happy to announce my experience with a new 308 criterion 24" varmint contour barrel for a small shank savage action along with a heavy stainless barrel nut and a heavy barrel lug that I purchased from Jim Briggs, Northland Shooters Supply. Friday the March 21 2014 I went to the range to sight in a new Shepherd V2 scope it only took 3 shots to zero the next five shots formed a group of no more than 3/8s of an inch. The ammo was 308 168gr Fed GMM. Thank you very much criterion. Good shooting everyone.