Dear E.M. Betting:  Welcome to the Krag Collectors Forum.  I believe your Norwegian Krag started life as 'gunboat57' describes:  "a Model 1894 Norwegian Infantry rifle built in 1922".  It is likely that a Civilian owner sent this M1894 Rifle to the Kongsberg Vapenfabrikk, or to a private gunsmith, to have it converted to a Sharpshooter's (target) rifle similar to the Model-1930 pattern.  It appears you have a very nice military style target rifle with diopter sights that are worth much more than you paid for the rifle.  I hope you get some responses from knowledgeable Norwegian collectors.  Hopefully, there is a shooting classification that allows you to shoot your rifle as a Service Rifle converted to Match/Target rifle use.  You appear to have a very nice rifle chambered for a fine cartridge.