Anyone interested in a basic tutorial on the use of Mil-dots should get the shooterready CD from www.shooterready.com. The CD is more than a Mil-dot course as it graphically explains ballistics, wind, moving targets and other essential topics. After you read and do the interactive training portion there are 10 realistic shooting ranges with 10 targets to Mil and shoot at a wide variety of distances and winds. They throw in varied elevations and stuff like that to make the challenges tougher Then there is a group of ten moving targets that must be Mil-ed, doped and lead. The apparent size of the target changes when you switch from seeing them with your naked eyes to looking through a ten power scope, as does the apparent movement. All elevation and windage adjustments are put on just like a tactical scope. The trajectory of a match .308 round is utilized in the program with very real results. The graphics and audio are really great, this CD makes learning and refreshing your Mil-estimating fun. The only negative point I can make is that the Mil formula suggested is not one that I was taught or prefer to use (prefer the size of the object in inches times 27.77 divided by the Mil reading). Better yet is to use your handy-dandy Mildot Master, but someone else can review that little gem.