Take your gun to a gunsmith and have them check your crown of your barrel if thats good then also have them check to see if the pillar's of your stock are embedded right. And still if thats good make sure u have good mounts on your gun also. But to add to that if your shooting a heavy caliber rifle you need a good scope that can hold up to the recoil, but if thats not the case check your bases, or like others said your scope might need to be sent in to the manufacturer.