Go here and play around with angles etc. JBM - Calculations - Trajectory
Shooting at angles is no different than shooting flat after proper calculations and clicks are made. The secret for me is to get a "feel" for how much of an angle I'm shooting.
Hmmmm, I just clicked on the link and the "my" data for the 338 RUM and Berger Hybrids came up. I wonder what that means??