Re: ranging with the IOR MP8 reticle??
The most accurate way to determine what power setting you should be on is to forget what the manufacture says. The power setting may be close, but not dead on.
What I've done in the past is to put a target up at exactly 100 yards with a 3.6" piece of tape in the shape of an L. 1 mil is exactly 3.6" at 100 yards. So now I have a 3.6" horizontal and a 3.6" vertical aiming point. Adjust your cross hairs until you have exactly 1 mil-dot or slash mark if using the MP8 reticle, coving both the vertical and horizontal piece of tape. Then mark your zoom ring with a dot of white or orange paint.
This way you're dead nuts on with no guess work.
Hope it helps. [img]images/icons/wink.gif[/img]
Distance is not an issue, but the wind will make it interesting!