I have an older 30 30 topper 158. I put a williams wrgs peep sight on it and have a small bead on the front. In order to sight the gun in I had to push the peep sight almost all the way to the left [as I am holding it] to hit the target. Can I fix this so the peep is better centered over the barrell by moving the front sight in its dovetail and if so, ho much?