I think having someone else who is a really good shooter shoot it. Unless there is something loose in the scope, it probably is flinch. I have hunted many years and have trouble shooting good groups with my .270. The more you shoot the better you'll get. Try shooting just 3 shots a day for a while so you won't get frustrated.

What pisses me off is that when I'm hunting and take a shot at a deer, I don't even hear the gun go off or feel the recoil.