4.0 small error report and some questions

[Companion]

Will anyone help me on "weapon ID" question?

Are 125mm gun 00/03/05 (these have ingame sabot pen value of 70~90 level) representations of "what-if" weapons made in the past but somehow survived?
To my knowledge best and most recent Russian APFSDS round is 3BM-42M with penetration value of something between 700~800 RHA at 0m, 0 degrees.

Any help is appreciated


Edit: Changed somewhat arrogant and hostile sentences.