Raimey,
For questions regarding "Waidmannssprache", you can ask Axel, he is a certified instructor and administers the tests for aspiring hunters. You have his info.
For questions regarding gunsmithing/gunmaking terms, ask Walter Grass, Helmut Kerner, Gerold Pfeffer, Hans Zimmermann, or Rudi Henneberger. They were still "kicking" when I left, but except for Walter, I haven't spoken to them since. I don't have their info, but I'm confident you can find it.
Mike