What are the correct designations for the following MG151/20 20x82 rounds and MG 131 13x64B round?
20x82 API, Lacquered steel case, Percussion primer
20x82 M-Geshcoss, Brass plated steel case, Electric primer. The fuse on the round is marked ZZ1505 eeo 456 43 [Waffenamt]. Does that make this an M-Geschoss M-Zerl or O-Zerl (Does the fuse have an SD mechanism)?
13x64B API, Lacquered steel case, Electric Primer
Any info would be helpful.