When I first started shooting long range I used Mildots to range deer successfully out to 500-600 yards. Firstly, since there will be a degree of error using Mildots to range game I quickly realized that I could reduce this error radically by using a flat shooting caliber. With my 308 at 500 yards on deer I had to accurately range to within 25 yards. With my 270 SM I could take that error to 50 yards. The simple formula I used to develop a range chart was to multiply the chest area in inches of my game by 27.8. This would give me the range of that animal using 1 Mil. An 18"
Chest of a deer woul be 1 mil=500 yards. At this point you can use simple arithmetic to build your chart. 500 yards divided by Mildots
1 mil - 500 yards (28" deer chest X 27.8)
1.5 mil - 333 yards (500 yards/1.5)
2 mil - 250 yards (500 yards/2)
3 mil - 167 yards (500 yards/3)
.8 mil - 625 yards (500 yard/.8)
You can build your chart with as many multiples of a mil as you desire.
Elk wouldl be easier to range as the larger the target the easier the ranging,given equal distances. In the case of a 30" chest of an elk the 1 mil distance would be 834 yards (30x 27.8). 2mils would be 417 yards.......
Pretty easy, fast, and with practice, it works well.
