I'm probably going to buy a Nightforce NX8 4-32x50 and throw it on my rifle with a 40 MOA base installed. I know it has 90 MOA of total elevation adjustment and so in theory it should come with 45 up travel and 45 down travel available leaving a surplus of only 5 MOA once mounted on the 40 MOA base. That said, I know this is only theoretical. What I want to know is if there is anyone who has put the NX8 4-32 on a 40 MOA base and if it worked for you.