Sierra has improved several functions and added a few new features to the Infinity software, including improved atmospherics, improved altitude estimates and atmospheric conditions. Revised print formats: m.o.a. (clicks) column, tabular formats for tactical shooters--in minutes of angle and milliradians--and uphill and downhill calculations. Allows for five separate wind zone conditions downrange. A twist rate function calculates recommended twist for any bullet/muzzle velocity. $40. sierrabullets.com , 800-223-8799
North American Whitetall North American Whitetail is designed for the serious trophy hunter. It provides authoritative coverage of world-class whitetails, the latest approaches to deer management and advanced hunting techniques.
