Ok I’ll try to hurry so does not time out. Who has infor on the German 2cm MG151/20 “M” round with word “gesteuert” ink stamped inbetween the two large “M”’. I know what the gord means (the attached TM of definitions) also have the CIOSC detailed interrogtion report from Mauser Oberndorf detailing the history of all electric primers and for whic each was developed. And I have the translated "Handbook of German Aircraft Ammunition, with color plates 19, 1956. This document on page 4 identifies for MG151 and MG 151/20 “synchronised” rounds will be used, and the special “sychronised rounds will not be requisitioned for any other weapon that does not fire through the propeller circle.” Mr. Tony Williams also told me he believe this was a marking to ensure these round were positively identified. I agree. I only know of 4 other round in collections with this marking. So my questions are:
Why is there no documentation about this rounds marking?
Why is such a specil round, made in quantity, not addressed in current German aircraft ammunition books. It certainly is not a “common” round.
Has anyone else got some of these? Have defenitive documentation showing the marking?
Can anyone help out?