New to the group, getting my feet wet in the antique firearms world.  I have the opportunity to pick up a 1863 Sharps Carbine.  Converted to center fire.  But a lot of info I have come across has my head spinning.  I'm under the impression from "the internet" that converted Sharps would have a 3-land/groove barrel. mind still has 6 lands 6 grooves.    No marking what so ever on caliber. I know percussion Sharps were .52 caliber. Converted was most likely a 50-70 but wasn't there other calibers as well??? last but not least...... need help on serial number history: S/N is C39413 which should make it #139,413.

Vern, that is a pretty high serial number on your rifle and should get it into the 1869 model range. It may not be a conversion at all and it's just been rebarreled. Measure the thickness of your lock plate. Does the lock plate have a vertical slot cut in it that is visible when you cock the hammer?  If so that was for a primer system and would indicate that it is a percussion lock that was converted. Does the front of the receiver have a rounded shape or more of a convex curved shape?  How is the lock plate labeled? Does the serial number run across the receiver or does it run the length of the tang? Is there a sling bar on the left side or remnants of a sling bar with a plate inlet, into the side of the stock ? As always, pictures, pictures!!

3 groove barrels were done at Springfield armory 6 groove barrels were done by sharps.

any thoughts on this 104 number? unit designation? or probably armorer just  numbering them?  Or did they mean for it to spell VOL ?

unit number maybe???

the fact the butt plate still has the cut out for the patch box hinge cover tells me it is a 1863, what do y'all see??

New model was the 63 and the 104 was probably the company rack number.