Are you kidding ! Its like a rocket trying to enter the atmosphere with out the use of computers, too many varibles. You have a bullet moving through three kinds of waves, the ballistic coeffient changes the speed ,other changes like air temp, speed of sound ,humidity,wind and many more. Its all a compromise ... I just want to get close on a load. I can control the explosion with the primer and powder combo. Seating height and crimp pressure can be adjusted to find a safe medium. This is easy as wind tunnel testing. Now my brain is fryed.