There's the kicker - any large bell scope will have difficulty with that. I had to go extreme when I scoped mine. I had a large scope, Bushnel Sportsman 4-12, (very nice person gave it to me), and the bell would have never cleared the rear sight. What i did do was ask a gunsmith friend of mine to make me an adjustable rear sight, since nobody else does.
Marbles Adjustable folding rear sight on custom silver soldered base.

With scope mounted. Yes, it is clear...by about 2 millimeters.

The Redfield shouldn't have that issue, being both shorter and smaller belled.