I have a 1:8 twist 26" 6.5X284 barrel made be Criterion. it is a hev. sporter contour and is threaded for a Savage small shank. There has been 46 rounds shot through it and just yesterday my wife shot a 3.227 inch group at 600 yards. The barrel is a shooter and I will pass the load data with it. The reason for sale is my wife wants somthing different so her wish is my command. I paid 250+- through Jim Briggs, I would like to get 175 out of it.