How to modify the bullet trajectory based on the ballistic coefficient?
I am new to the physics surrounding bullet trajectory and how it is calculated. I am a software developer and I am working on a ballistics calculator. I am using wiki for the trajectory calculation.
I am currently using the equation under the "Angle $\theta$ required to hit coordinate $(x,y)$" section. This is all well and good, but it doesn't take into account the drag of the bullet(ballistic coefficient).
I have searched all over trying to figure out how to apply the coefficient to this equation. I am really at a loss and and would be very thankful for any direction in this matter. Maybe I have a gap in my understanding, but I have found plenty of other calculators and other documentation on trajectory and the coefficient but nothing that marries to the two together.