Your low rent ballistics are whack. Who knows what the retard coefficient is, let alone the adjusted retard coefficient or Meyewski constant...
Try this program:
Use a G7 BC of .307 for the 162 Amax, or a G1 BC of .599.
No offense meant, I'm just having fun. Programs that use the Pejsa solution will always ask for bullet parameters (like the retard coefficient) that no-one knows. If you stick to conventional BC's referenced to known standard projectiles like G1 or G7, then you can more effectively check your data with others.
Let me know if you have any trouble with the program,