Just got my vortex 6-24x and installed on my POF 308 AR. I used NF ultralight rings which are 1.375" which is standard for AR height. Went to range and zeroed the scope this morning and once I zero I only have 14 MOA of elevation left until the turret taps out ? I used exact same height rings on another AR with NF 5-22x scope and had 40 MOA still left after zeroing at. 100yards. All inputs appreciate.