Question about the explosive filler of German mine shells

Machinery of War Discussion Historical Discussion
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Hello, I have a question about the explosive filler used in German mine shells(minengeschoß), especially in the 3cm ones.

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I found that they mostly used HA 41(RDX+Aluminum) and HTA 41(RDX+TNT+Aluminum) as implemented in the game(+very small amount of PETN). But I’m curious that whether there were 3cm mine shells filled with PETN or not.

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As far as I know, the darker green means incendiary, lighter green means H(T)A 41, and orange means PETN. I could find some pictures around the internet showing the sectional view of 3cm mine shells painted orange, but could not find any historical document actually stating that there were shells filled with 75(85)g of penthrite.

Some years ago, Gaijin also uploaded a news article regarding the mine shells, stating that the 3cm shell was filled with 85g of PETN. Is it safe to understand it as a common error corrected via time?

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I think early variants were probably filled with TNT and used a big PETN booster.
The switch to HA 41 / HTA 41 was around 1942/1943, if I’m not mistaken, for both 20mm and 30mm Mineshells.

Comparison of Flash from 3cm Mineshell with TNT compared to HTA 41

M-Gesch-Trotyl vs. HTA41
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Other than that I can only imagine PETN being substituted for some Mineshells instead of HA 41 or HTA.

“Handbuch der Flugzeug Bordwaffenmunition 1936 - 1945”
actually lists a 295g Mineshell for the MK 101, dated August 1942.

If the early Mineshells used a light alloy fuze and were filled with TNT instead of HTA, it would explain the lower weight compared to later 330g heavy Mineshells.
A firing table for it is dated May 1942.

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