Check the various entries and photo montages in the Sweden - Milsurp Knowledge Library (click here)
Pics sure would help us a lot ..
Anyway, does it look like this?
1899 M38B (M96/38) Swedish Mauser Short Rifle (Mfg by Carl Gustafs Stads Gevarsfaktori) ..... (click here)
... or this?
1907 m94/14 Swedish Carbine (Mfg by Carl Gustafs Stads Gevarsfaktori) ..... (click here)
The M96/38 has a 23" barrel, whereas the m94/14 has roughly a 17" barrel.
Post pics, or if you don't know how, email them to me and I'll post them for you.
Regards,
Badger