Prussia pretty much ceased to exist as a country when Germany unified in the 1870's. The Prussian monarch became kaiser so imperial Germany used the Prussian eagle as it's symbol. Saying something made in Prussia 50 years after unification isn't German is more than a little like saying something made at Springfield arsenal isn't american because Massachusetts wasn't always part of the US.
Just curious but other than the crown proof mark and the chambering what lead you to believe that the rifle was Swedish?
