Well lad, after reading up a bit due to a post from another fellow on another forum who is currently a spotter in Afgan running a M110 rig, it seems to me the M110 is speked at 1.5 MOA or less, with 1-.5 being within norm with the good issue ammo.
Therefore, I do believe you are in the zone!
And them guys only get a 10x scope! You are cheating!