Raimey, are you suggesting it may have been ordered for the SS? Goering set up pre-war Gestapo and I think he led it briefly. By 1944 he was out of Hitler's favour.
King Brown:
I'm not suggesting it yet, but I wanted to make an awareness of specific marks like the rune,
http://en.wikipedia.org/wiki/Sowilo_rune , in case they are present on the longarm. I've seen single runes on a Simson/Iver Johnson double and thought it to be tied to the Hitler Youth.
True Goering,
http://www.history.com/this-day-in-history.do?action=Article&id=6618 , was out of favor with Hitler in 1944, but he went back to one of his true loves, hunting/being a forester,
http://en.wikipedia.org/wiki/Hermann_Goering#G.C3.B6ring.27s_private_army . I've seen his name being associated with "Head Forester" but usually it denotes something dark like this: "For one thing, there are biographical reasons. Before the war I read On the Marble Cliffs ([Die Marmorklippen]), when I was practically still a child, because my father had read it. It was considered a resistance book. There was a strange parallel for me. One character in On the Marble Cliffs is the Head Forester, i.e., the chief of state terror. And the "Head Forester" was a name for Hitler that was common in the Ore Mountains ([Erzgebirge]). They called him the Head Forester, not Göring. Hitler was the Head Forester, and then somehow it shifted and then Göring was the Head Forester, of course. And suddenly this name was used for Hitler too." from
http://muller-kluge.library.cornell.edu/en/video_transcript.php?f=108 .
One last note is that some of the German scattergun's forcing cones appear rough and rather lengthy and I wouldn't challenged the 65mm until a measurement is made to the forcing cone. And it is the Miller that makes it a puzzle.
Kind Regards,
Raimey
rse