Yes, of course - after the war, american calibers became modern and the proven german calibers were buried in oblivion.... Today it's sometimes contrary.

@Gnter: of course you are right with the Bochumer Verein bought by Krupp after WW II.
The BW for Baden-Wrttemberg is questionable, because the Sauer of that time were built in Schleswig Holstein and I think also got proof there in Kiel.

Kind regards,
Gunwolf

http://www.hunting-heritage.com