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Unknown 20mm size Soviet? Cartridge.

917601

Well-Known Member
I do not know this one. Not mine, I will have the projectile diameter in a few days. I was thinking by the belted headcase ,head case markings and coloring someone may be able to quickly ID it.
 

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Nice one ,

this one is a German produced 20x138B AP-T round. Panzergranate Patrone L’spur. This particular one : Polte , Polte Magdeburg.

These were mainly made for export however some later ones are found with WaA marking & manufacturing code “aux” which is also Polte Magdeburg.

If I’m correct ... Holland , Finland , Switzerland , and a bunch of other nations used these German made AP-T rounds and were used in the 20mm Lahti M-39 (Finnish) anti-tank rifle if I recall correctly. I’m not sure if they were used in the 20mm Solothurn S18-1000 Anti-Tank rifle , but either way : 20mm German-made , Export round used in Anti-Tank rifles.

This one seems to be a very early one though , I don’t recall seeing one marked like this , most I’ve seen were ‘aux’ marked , later ones.
Only recall seeing this PM marking on the 20x105 L204 cases (Versuch)

Hope this information is useful & answers some of your questions , if anyone has any remarks on this subject , please feel free to let me know. Always open to learn.

Thank you
 
Bever is correct.
I can add the round is considered an
AP practice -T.
The "G" like marking on the headstamp is consistent with German export production for Sweden.

The 20x138/B round was used with (among others) the Solothurn S18-1000 series AT-rifles.
Though Finland mainly used 20x138/B ammunition of indigenous design/manufacture with their Lahti M39, it did receive delivery(ies?) of German 20x138/B according to Jost Anderhub.

Other designs using this round were Italian and Finnish anti aircraft artillery pieces.

The 20x105/B was used in the S18-100 series.
 
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