All info is pointing toward the 11.2X72mm Schüler and more than likely not the rare bird 11.2X72mm R Schüler. The Hannover firearms merchant probably sourced the longarm from Schüler who sourced it from Sempert & Krieghoff, who at some point purchased machinery and some components from Schilling. I’m curious if there is a “S&H” or “S&K” stamp on the tube. If Schilling had made it I would think it would be in a smaller calibre and something above 6x58 Foerster and up to an 8mm diameter. Besides Bock's 9.3X62, Schüler’s proprietary cartridges cornered the bolt market.
Kind Regards,
Raimey
rse
