These are the same munitions as used by the Solothurn, and Lahti A.T. rifles, I have seen many of the ammo types produced by Germany for these weapons, and have some myself, but not the explosive types, they cost alot, and each round needs to be registered and numbered, @$200.00 Its really nice to see the other available ammo, Thanks PanzerKnacker - Raspenau -
No problem, if you want I can post every 20x138mm round used by the Whermacht in a separated topic.
I would very much enjoy that my friend. thank you.
Okay , I ll try to do that as fast possible.
Well, better later than never 
Flak 38
Panzergranate 40 armor piercing tracer tugsten core.
Platzpatrone ( blank, wooden bullet), Exerzierpatrone training dummy cartrigde.
Well, a forgotten topic but as the old say…" better later than never"
Here you got two links with tons of information:
http://www.histavia21.net/amaviapag/20flak_planches_extrait.htm
http://www.histavia21.net/amaviapag/20x138bDIA.htm
Two pictures of single and quadruple Flak 38 emplacements used by the Kriegsmarine.
