Did you solve this problem ? if not, just up the ring height. if you're using low, get medium. problem solved. Photos show rpr in 6.5 cm with leupold VX 3i lrp 8-25 x 50. A 56 mm objective will just touch the rail. I used the second scope in the view to check it, its the athlon ares HD 4.5 - 30 x 56, so you woulld need a taller set of rings, what ever you have on it, stick with same brand and get next taller set. Problem solved.