The rifle has sat around for 3 months since it was zeroed. It was dialed up 3MOA to shoot a deer in late November and is still set there. After testing some new bullets, I set the dial to back to zero on the Nightforce and use the load that it was zeroed with. The object was to compare the group size of the 155SMKs to my usual 175s but it also demonstrated a few other things The aiming point is the bottom center piece of tape and the upper right corner of it. Watch the sunlight change right before the third shot is fired and see where that bullet goes. YouTube - Retrun to zero.m2ts This is not any great test being as it was only a three MOA but it happened to be on the video and some other threads had discussed scope tracking.