Whoa...hold up here. My guess is that you have a scope with a 1" tube mounted on 30mm rings. At least that is what is sounds like to me.
That is the first thing I would check. Also, you don't have to super tighten the ring screws. Most guys over tighten them and cause damage to the scope tube. The recommended torque is 15-20 inch pounds which isn't a whole lot.