I put the new Mueller 8-32x44 scope on with the EGW 1-5/8" ejection port rail and the rings from an Ultradot. The bell measures 2" OD for the 44 mm lens, so about 51 mm for the bell. There is still a bunch of clearance, even with the 3/8" or so Ultradot rings. I could have gone with "low" rings. Here are some photos for reference.









And the best target from last night.



Joe