Sierra’s Infinity ballistic software takes advantage of the need to make the software compatible with Windows Vista to add some functions and improve several others. The atmospheric model is improved to add and improve altitude estimates, print formats are revised with MOA columns and more field friendly print outs, formats for tactical shooters include MOA and MIL as well as uphill and downhill calulations. Twist rate calulations for bullet/muzzle velocity/stability and recoil calculations for gun weight/bullet/powder charge/velocity are also included. Requires Windows Vista, XP or Win2K, 800 X 600 resolution and 60MB hard drive space.

Available as Infinity Software CD only, Infinity Software CD/5th Edition Manual on CD combination, or Infinity Version 6 Software CD and 5th Edition reloading manual in book form.