Patagon hunter's rigle Shows pre-1912 civilian proofmarks: CROWN-crown/N = proofed using the "4000 atm smokeless proof powder" for a service load of 2.75 gramm = 42gr Gewehrblättchenpulver = (military)rifle flake powder and a StmG = steel jacketed bullet.
Why did many of These rifles end up in gunshops? Not all officers who received such a "gift" had use for a sporting rifle and preferred cash instead, so they sold their brand new rifles .