I am revisiting my old .obf file for my mod and I must say I am rather stumped about the Penetration values for one of my guns. 
Its a 10,5cm KwK 46 L/70 gun. I have no idea what the AP Penentration, Sabot penetration or the HEAT penetration values should be. 
Anyone here know of a way I can figure this out? Maybe some help from the Devs.?

 Thanks in advance,
Monty.