Figured you guys might want to check this out. This scope reticle is quite different from anything else out there. As you look at the reticle you immediately notice it is not straight. It accounts for spin drift as well as cross-wind jump, which is the vertical component that a crosswind imparts on the projectile. Also built into the reticle are boundary layers of airflow and dissimilar wind drift. There are a number of ranging mechanisms built in, as well as compensation for different density altitude. In the end, what you have is a reticle and scope package that requires no ballistics computer. It is built into the reticle. Wind is expressed in MPH, which is nice. I recommend you watch the videos first, then check out the manual. The last link is an interactive that will allow you to use the features of the DTR reticle
http://www.davidtubb.com/Articles
http://www.davidtubb.com/Videos
http://www.davidtubb.com/dtr-scopes
http://dtr.leestearns.com