If interested in external ballistics, This will give some idea of what to expect in drop at the ranges you shoot.
Plug some numbers into this site's trajectory calculator.
You input info such as range, velocity, ballistic coefficient of the type of bullet. Manufacturers publish this on their products.
It makes a chart that graphically shows bullet path
(If you want more detail on drag coefficient shapes here is a chart or otherwise use g1.)
I use several different bullets and this info comes in handy
According the ballistic coefficient of the bullet you are using you can get some idea of drop at different ranges.