Best version of the FX Panthera for hunting.

You only know your PB!
Do you know the FPS and weight of the bullet? Can you figure out things from there?
Can you figure out wind drift adjustments on the fly and on and on.
Yes. Okay if I want to shoot 27 grain slugs at 935 feet per second for hunting. You are going to have around 50 fpe. Also the wind drift adjustment in a 10 mph wind would be 2-3 inches.
 
Get a copy of the Sniper Training Manual.
Then you have a basis to understand long range shooting.
THEN you have to adjust that to the slower speeds and ballistics AG's shoot at.
It's not point and click click done!
I know ballistics. I can shoot with them but when people ask me I can't explain it. I only know them when I am shooting.