mouthcaller

Advice - go to another smith.

You need to get that thing pointed relatively straight in line with the bore. Ideally you want the crosshair in the middle of your field of view where the image is the sharpest. If you are having to dial the elevation all the way to the end of it's adjustment then your crosshairs are likely at a point on the edge of the FOV where the image begins to loose focus and resolution.