I have two sight aiming systems. The ACOG with Doc on top. On that rig I have the crosshairs zero at 100yrds, and the red dot at 25yrds. The Red dot is 8moa, so its pretty much built by design to CQC.

My Aimpoint M4's is zero at 100 yards. When I was practicing drills last weekend, my POI was low at 25 yard shots. I knew this would be the case.

Two questions:
what is your Red Dot Zero, & why?
If you sight in at 100 yards, what is the trajectory supposed to be at 25-50-75 yards. I will shoot it soon enough at the range, but thought you experts could shed lmore light. As always, thanks!