Since it has a good bore, why not just rechamber to 25 hornet.  Get a 67ish grain mold that fits your bore and load it 1200-1400fps and duplicate original loading.
Cheap and easy to shoot,  preserves everything on the outside and makes it easy and practical to shoot 
IMHO

The last one had a lot more figure in it than this one does.  I shouldn't even talk about the first one because I haven't even shot the first one yet.  My only dismay with the first was in the twist rate of the liner which was 1:10, which seems to me to be awfully fast compared to the twist rates of 1:16 and 1:18 being used in currently produced rifles chambered in .38/.357.  My model 77/22 was built with a 1:12 twist and wouldn't shoot 55 and up gr bullets worth a hoot.  I learned that that slower twist rate required lighter bullets.  Now it's really accurate with 52 gr and 53 gr projectiles, so I guess that implies that I'll have to shoot heavy lead through the first '85..