For what its worth and those up to par on I phones, there is an ap you can download "ballistic calculator" - web page
igor@borisov.mobi that helps determine ballistics on bullets with weather factors and other variables. I use it on some of my rifles as a starting point of where the bullet will land at certain distances. Its fun to play with while out shooting. Once all variables are plugged in it gives you a table with (Bullet speed,Energy, time of flight, vert correction, vertical MOA and horizontal corrections) at different yards.
There are a couple of dufferent app's one can download with this type of features.
Just thought I'd throw that out there while talking about ballistics.