Check out the thread in the Axis section by CaptnC. I think that’s right. He rebarreled an Axis to 6.5-284 and did some fantastic shooting with it at 600 yards. With the Axis having a small cut out for the ejection port significantly increases the stiffness of the action. I rebarreled a Remington 783 which is similar and it shoots amazingly. But it suffers from lack of support by after market parts vendors and a plastic trigger guard for which there is no replacement.