If you're referring to the Spot-On program, I "use" the web-based version but don't "have" it. If you're referring to something else then disregard.
I have used the Spot-On program for 2 different 7mm-08's (Savage 111 with Pro-Staff 3-9x and Tikka T3 with Monarch 2.5-10x). Both are "spot-on" out to 500 yards or thereabouts. I will be working on a .264 Win Mag with a Monarch 4-16x in the near future, but can already tell the BDC circles are going to be at odd yardages for the flatter trajectory. The good news is that the Monarch scopes have nice turrets if you have time to adjust them for longer shots.