Guys,
The particulars on Gravity Ballistics, in other words, how the math works,
The App works with Meters or Yards, so if you are used to one system you can continue to work in that system.
The App works with Mils or MOA, the system of adjustment does not matter, it works for both
The App requires a 100 yard zero, because the numbers represent the gravity between yard lines. You can adjust the X factor Numbers as needed for places that have angles, as angles reduce the amount of gravity that acts on the bullet. If you find in your location, a number needs to be adjusted, usually the 700 and beyond if any, you an easily change the value in the calculator.
We used 1000 yards as 100% of the value and each yard line moves in from there in terms of percentage.
That is it, after that the app should be good