I was refering to the photograph of the gun and scope. The gun and scope are in 3-D but and when captured to the 2-d picture, the line angle could have been distorted. When my assitants are taking an x-ray of the tooth they have to be sure the x-ray beam is perpendicular to the tooth and film sensor or the image will be distorted. Depending on the angle it can be either elongated or shorted. I believe the angle of the camera to the gun and scope could have distorted the appearance of the picture. This would give the "appearance" that the scope was not mounted correctly. Same thing with the shot pictures. (Sorry that was a mouthful). Anyways, your gun is shooting straight that is the main thing! Hope this shed some light on the picture of your scope.