(Ned - Thank you very much for 'merging or combining' these two related KCA threads).

"kbthekid" - Krag carbine barrels were exactly 22 inches long, from muzzle to closed bolt-face.

It is unlikely a "model 1898" receiver, in the 470XXX range, had a carbine barrel put on it at Springfield in 1903.

After 1898, The carbines made at Springfield were marked "model 1899".

A lot of U.S. Krag rifles have been cut-down to approximately 22 inch barrel length. This was done by civilians and gunsmiths to make them handier for Hunting. The front-sight style and mounting often reveals 'cut-downs' to be what they are.

Also, some Krag rifles, with poor bores, were re-barreled by dealers (like Bannerman's and Stokes Kirk), who had a supply of surplus parts, including carbine barrels.

Clear photos of your Krag, especially the front-sight/muzzle area, would help others help you.

A complete serial number would allow someone to check if your Krag is documented in SRS Data.