The 5.2cm shot in a battle report of Lt. Zabel, s.Pz.Abt.503

Here is a famous story of Tiger 231 of s.Pz.Abt.503 referred from Tigerfibel, and you can find also a most similar battle report by Lieutenant. Zabel.
But what is the shots of 5.2cm? I could not find any information in the field-gun or anti-tank gun at those days.
I appreciate your any advice.





A list of references for the research presentation at The Military History Society of Japan

This is a list of references for the research presentation at The Military History Society of Japan . I'm grateful to the researchers an...