Re: Scope Level system
Feeler gauges are simple to use. There is a flat portion under the bottom of the scope, located below the turrets. This is the square point to which the rest of the scope is built from.
When you sit the scope in the rings, you will notice a gap between the scope flat, and the base or rail that you are mounting the scope too. You put feeler gauges in that gap, so the scope flat rests on the gauges and the scope rings.
Basically, you are making it to where the scope will have a difficult time rotating in the rings as you apply torque. Very simple to use, and does an excellent job.
DK