Did some shooting today. I recorded my poi's, to build a data card. I've played with a couple ballistics calculators, and can't quite tweak them to get the same results. Rifle: Winchester 70 24" sporter caliber: 270 win load: 140 grain sst bc-.495 RL19 56.4 federal 210 remington brass Mv: unknown Come ups required for poa impact: 500 yards- 8 moa 600-10.75 moa 700- 14.25 moa 800- 18 moa Temp: 55 degrees Elevation: 4000 Cant: 5 degrees Can someone help me build a card from this info? Why can't I get a match?