tbergdall:  Your Krag .22 is an interesting enigma.  I have a few questions, if you please:  1. Is that 'lobe' attached to the bolt-body and does it rotate with the bolt?  Or, is it connected to the striker-rod and non-rotating?  2. When you look into those stock 'holes', is there any sign of something having been attached to the barrel?  3. Is your barrel a .30 cal. Krag barrel that was lined or was it made as a .22 barrel?  4.  Is it .22 rim-fire or a .22 center-fire chambering?