Alternatively, it could be where you are now looking through the scope. Your previous zero could have been made in a position that was not the true optical center for the scope.That makes more sense than my original thought which was something in the rok was causing a pressure point, hopefully it's fixing stress not causing it. Logically since both caused /allowed a similar shift the rok relieving stress would make more sense, it's just always shot so well in the factory I hadn't thought about the factory being the "issue"
Thanks!
Jay