sgtheindl:  Welcome to the Krag Collectors Association forum.  You have the very desireable Norwegian Model 1912 Carbine (Karabin M1912).  Your Carbine, #20,832(?), was built in 1918 at the Kongsberg Vappenfabrikk in Norway.  'Parashooter' gives advice I would certainly follow.  I have fired Norma, Privi, and Korean factory loads in my Swedish Mausers and in a sporterized Model 1912.  Once I had a 'brass base', I reloaded with 'starting' loads that also were considered 'accuracy loads'.  Hopefully, you still have the metal butt-plate under the rubber recoil pad.  6.5X55mm is a sweet shooting round without much recoil.  In your photo, it appears the small 'headless' screw is missing, that should project through the hole in the rear hand-guard, just in front of the sight.  This serves as a pillar or rest for the rear sight leaf.  The leaf can be flipped forward and the back blade is notched to serve as a 'battle sight'.

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