Wolfgang,
thanks for this great article!
It is interesting to see that Germany then had 2 institutions doing research on small arms and hunting.
I happen to have "Das Schiesswesen", a supplement publication of the "Deutsche Jäger-Zeitung", from no. 1 in 1895, until 1909.
The lead article of the first issue is "Betrachtungen über die Schiesskunst", authors Armin Tenner and Albert Preuss.
In August 1900 there is an article describing "Die Versuchsstation der Deutschen Jäger-Zeitung", authored by Preuss.
There is a detailed description of the premises with many pictures.
The following issue describes "Das grosse Preisschiessen des Schiessvereins deutscher Jäger", held in Neumannswalde at the formal opening of shooting ground and Versuchsstation.
so this is the starting point of the Neumannswalde institute
fuhrmann