I bought this scope used, hardly a mark on it seemed well taken care of. Problem is that the power change ring on this 3-9x40 scope acts like it is very stiff when adjusted, like you have to use more force than normally to move the ring. There is a slotted screw just above the #3 and a phillips screw about 1.5 inches past that on the ring.
Is there an adjustment with one of these screws to loosen the tightness of that ring, which one is it?
Thanks.
Joe