The Kestrel Sportsman Weather Meter combines accurate measurement of air density and wind with a powerful ballistics calculator to deliver precise elevation and windage solutions for any gun, any round, any shot. The built-in enhanced Applied Ballistics G1/G7 ballistics solver is tested and trusted by long-range hunters and shooters. As a general rule, this meter is for people shooting out to 800 yards. If you think you'll be going beyond that, consider the Kestrel Elite. You can upgrade later, read on...