Do yourself a favor and purchase a Mildot Master. Beats the hell out of a calculator.
The easy part is learning to break the dots down into 1/4 and 1/2 increments. Practice will allow you break them down into 1/8 and 1/10 increments for much better ranging accuracy. This takes a lot of practice and spending an hour or so isn't going to get you there. Take your scope with you everywhere and range any and everything of known sizes. That will make you better.
Remember to get good with them…..It's practice, practice, and more practice. When you think you've practiced enough…Tell yourself "Wrong" and go practice, practice and practice even more.
Mildot calculations.
For yards
Take the target size in inches, multiple it by 27.77 and divide it by the number of mildots covering the target.
Example: For the sake of argument, a ground hog standing is 15 inches. 15 X 27.77 = 416. It takes 1.25 mildots to cover the ground hog (top of head to ground). Divide 416 by 1.25 = 333 yards to the ground hog
For meters
Take the target size in inches, multiple it by 25.4 and divide it by the number of mildots covering the target.
Example: Same ground hog standing is 15 inches. 15 X 25.4 = 381. He covers 1.25 mildots. Divide 381 by 1.25 = 304 meters to the ground hog.
Hope it helps
[ 10-17-2003: Message edited by: Jeff In TX ]
[ 10-17-2003: Message edited by: Jeff In TX ]