OK... found your question (I never looked at it). Uh... I would think that it would be the same way you zero a handgun. Perhaps start at a shorter range to "get it on paper". Move the rear sight right to make the group go right, move the rear sight left to make the group go left. Raise the rear sight to raise your group, lower your rear sight to lower your group. If you can only adjust the front sight, reverse the above values (i.e. move the front sight in the opposite direction that you want the group to go). Move back to 25 and 50 yards to tweak your adjustments. I don't have a Trak-Lock, so I can't speak to the specifics.