I wonder if it could be used to help zero a rifle scope? You know one shot and adjust?
There actually is a way to do this with a bolt gun, and without a bore scope of any kind. You bore sight the gun, then on a good rest, fire a shot at the bullseye. You then put the crosshairs back on the center of the bullseye and, holding the rifle perfectly still, you adjust the crosshairs, using the turret adjustments, until the crosshairs move to the previous bullethole in the target. The next bullet will go very nearly perfectly to the point of aim.
Now, could you explain how a bore scope could assist in this?
Thanks, SrH