Okay, this question deals with Col. Santose's IBZ and MOA-per-click stuff.
Basically, how far does one click on the elevation knob on an M16A2 (8/3 sights) or an M16A4/M4 (6/3 sights) move the round? I know that if you back down two clicks from a 300m zero you get the IBZ, but that doesn't get me quite what I need.
Basically, if I zero an Aimpoint CompM2 at 25m, POA=POI, how many clicks do I need to adjust the sight to get an IBZ (for 50 yds)? I can do the math if anyone knows how far a click is on the 8/3 or 6/3 sights. For instance, if it's 1MOA per click, then I know I need 4 clicks on the Aimpoint (which is 1/2 MOA per click).