An old and interesting thread, which just was revived in a neighbour forum by Buckstix.
So, one addition from me: as a steel producer, you make no money in civilian small arms barrel steels, but you gain exposure and a certain pedigree even. I believe that may have been one reason why Röchling too sought to cover this economic niche between the wars. Personal connections may also have played a role.
Mahrholdt's Handbuch für Waffenfreunde, 1st ed. 1931, lists three Röchling "Laufstahlsorten" under this very lemma. Here is a link:
https://diglib.uibk.ac.at/download/pdf/845775.pdfRegards, Carcano
