Zak...
Just a quick note...Once upon a time I relied on these ballistic calculators to predict a flight path for a particular load for varminting with a .220 Swift. I assumed that it would be accurate enough, and didn't bother putting the loads on paper at ranges other than the (2" high at) 100 yard zero that I prefer. Even though I was quite comprehensive in inputting the load data, the calculator showed a bullet drop far in excess of what was actually happening, and I shot over the backs of a lot of jackrabbits that day, out past 300 yards. My point being, there is no substitute for empirical data.
I don't know about online data, but several of my load manuals have ballistic charts, as well as ammo manufacturers' free brochures.
Cordially,
Smith