I just mounted a Nightforce NSX 8-32x56 on my Armalite AR-50. The gun came with the 15 MOA rail. After getting it all mounted up I used the Leupold bore sighter to get it bore sighted. To get it bore sighted I needed about 3 revolutions and when it was even with the bore sight it was maxed out of adjustments. But is this right? I'm assuming the bore sight is for 100 yards and I will most likely have at least a 200 yard zero.