Penetration values for A1 and A2 are too high, as well as Charm 3 when they state these numbers they dont specify the type of steal (RHE is to braod of a teminology ) or armor they were tested against.
Look, I’m not even going to try and pretend to have the understanding of material science and mathematics required to fact check it, I’m just posting the paper.
Actual published works, manufacturer specifications, operators manuals, etc ,etc. Of course only publicly available non-classified and non-restricted sources.

BUT for penetrators Gaijin doesn’t use any source for penetration at all, they calculate it based on the dimensions and material properties of the round to make things unified and more fair (due to different countries using different testing conditions and different successful penetration metrics). You can read a bit more here: ( [Development] Improved Calculation of Armour Penetration in the game (5 - Page) ) - News - War Thunder ) as well as here: ( Calculation of Armour Penetration | War Thunder Wiki ).
Yes I understand I also read some of those exact documents as well.
The numbers for in game penetration are fine, they dont have to be exact, sometimes post pen effect makes us all go at times “nuts” but I guess its part of the game.
Yes that is true that penetration is also against higher grade steal which also shows complete penetration not just partial.
It was one of the worst K/D’s now, I think it’s fine were it is or maybe move it to 12.0 to make 10.7 more playable
They need to fix the damage model and then adjust the BR accordingly. As long as they don’t address this I’d be fine with it moving to 12.3.
It could be fine at a lower BR as long as it’s got a consistent and predictable damage model, but instead we have this:
Why did you choose this nickname? Pls tell me you are not xenos lover