first I would check to make sure all of your mounting screws are tight. Then I would check to make sure your scope isnt too close to the barrel. Did you change rings? If so I have seen crappy rings that are not true and not have 100% surface contact on the scope. Sounds like you have alot of things to check before you scrap the scope. Have you disassembled the gun? Maybe the screws that hold the stock on arent tight?