Ballistics & Density Altitude
You have purchased a set of Kriterium Long Range Data Cards and want to complete the Ballistics Module with your elevation & windage data to match your rifle and ammunition. The Ballistics Module works around the concept of density altitude, which combines air temperature, pressure and humidity into one single value. This makes it faster and much more efficient for shooters to adjust to changing atmospheric conditions. When in the field, just determine actual density altitude and select the corresponding color-coded range card.