Re: Ring height for Nightforce 5.5x22x56
This will work perfect for you. I posted this a couple of weeks ago in the scope section:
If you already have your base and scope, the easiest method is to stack pennies on the rail where you will mount your rings and set your scope on them. When you have the correct barrel/bell clearance, this is your height. Measure the stack of pennies with calipers and add .5" for 1" scope tubes, .59055" for 30mm tubes, and .66929" if you have 34's. This will give you the correct height of rings to buy.
Note, if you run a Butler Cap, please allow enough clearance.
FYI: I run a 12-42x56 NF NXS and I needed the 1.125" rings on my 20 MOA Rail. I have a custom #7 contour barrel and a Remington action.