First kill with oblique cannon

[rldunn]

Sorry for the confusion. Since this is a Luftwaffe message board and my initial question mentioned "cannon" (not machine guns), and then mentioned Do 217s and Me 110s, somehow I thought the thrust of my question would be understood by most folks (as it was by Tony Williams and others) as inquiring about German developments in WW2. But for any who remain confused and may be able to contribute info, I''ll try again. The development of oblique mounted cannon in the German WW2 night fighter force is generally credited to Hptm. Schoenert. When did this armament configuration first go into use and when was the first victory claimed using what became known as Schraege Muzik? Particularly, can the first German success be dated earlier than the first Japanese night fighter success with oblique cannon (May 43)?

RLD