German vs. French OOB: AP penetration for 25 mm guns

[Griefbringer]

I just spotted that there is a slight difference in AP penetration between French 25 mm guns, compared to the same (captured) guns in the German OOB. I would expect these to have the same penetration rating in both of the OOBs.

In the French OOB (06) all 25 mm guns (weapons 007-009, 210, 246) have AP penetration rating of 5.

In the German OOB (16), all 2.5 cm guns (weapons 009, 030, 034) have AP penetration rating of 6.

These guns can also be found as weapon 009 in the Finland, Great Britain and Italy OOBs, all with AP penetration rating of 5.