You can play around with this ballistics calculator and learn a lot. Use either the ballistic coefficient (BC) published by the bullet maker, or the one generated by the calculator. Use a sight height of .5 for iron sights, or something like 1.5 for a scope.

http://www.handloads.com/calc/

You can change the parameters (velocity, bullet weight, sight in distance, intervals, etc.) easily and get a pretty good reading. I like to set the intervals at 25 yards and the Max. Range at 200, and then play around by changing the Sight In Distance (i.e. the "zero") or the velocity to see what happens.