Here is the mildot training simulator... http://www.shooterready.com/lrs.html I used to have it, can't find the app. Gets you used to using the reticle for quick ranging. Demo http://www.shooterready.com/lrsdemo.html
I like the mildot, but am interested in the http://www.horusvision.com/reticles.php Have a browse and check the simulator. Tony
Before the Mildot there was the ART Leatherwood Scopes, that had the ballistic cams attached to the power ring. Turn the power ring until the stadia lines aligned to the head and around the belly button-hold dead on and squeeze the trigger. They worked well enough for the time. I have a mildot now but if money permits I will own one of these again. The shootready cd is good for pratice before you hit the range.