Dual atmospheric conditions

The Android app now has 2 Atmospherics screens: one for when you zeroed , and one for when you are shooting. This is easier to understand and use than the old system.

This corrects for air density changes between zeroing and shooting.

Temperature affects powder and therefore muzzle velocity, I could add a guesstimate feature to calculate that, but I'd rather not. The barrel flexes during firing. Velocity affects when the bullet leaves the barrel. So the barrel will have flexed to a slightly different position if velocity changes. And you can't really calculate that. Temperature may flex the scope in its mounts.

So dual atmospheric conditions helps, but there are other things going on.