The bullet should hit where the hairs cross at the correct range. Second, because they are telescopic, they magnify the target for the shooter. And because the target is easier to see, the shooter can more easily determine where on the target the bullet will hit. Mounting The Scope. The scope must be mounted in a set of solid scope rings.
Rings come in several heights.
Get the lowest height possible, but be sure that when the scope is mounted in the rings it will clear bolt handles, barrel, and other parts of the gun. If a base is used to attach the rings to the rifle, make sure the screws in the base are as tight as possible. Attach the rings to the base. If the front ring attaches to the base with a dovetail type fitting, don't use the scope to twist the ring into the base. The scope can be bent and damaged.