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[Nylo]

Delete

[Geologyjohn]

Looks like a blacksmith took a Model 1860 carbine (note sling ring, and M1860 rear sight) and replaced the short round carbine barrel with the heavy civilian sporting barrel. He also made the fore stock. Any markings on the top of the barrel?

[Nylo]

Looks like a blacksmith took a Model 1860 carbine (note sling ring, and M1860 rear sight) and replaced the short round carbine barrel with the heavy civilian sporting barrel. He also made the fore stock. Any markings on the top of the barrel?

No markings whats so ever. Still its quality barrel and job.

Are you 100% positive this in a 1860? Look at the serial number again.

Nylo

[Geologyjohn]

No I am not certain its a M1860, but the 4 digit serial number and the fact that it has a M1860 rear sight suggest its a M1860. Also, far, far more M1860's built than all others Spencers combined. If it were made from a M1865, why would the gunsmith have used a M1860 rear sight than the M1865 he had at hand?
It was very common for gunsmiths to alter these military carbines (note sling ring) to something useful for hunting in the civilian world. Kinda like what happened so many of those 1903 Springfields.

[Nylo]

Originally I did have this marked as a M1860, but the serial number threw me. As far as using an older sight, doesn't seem unusual to me one bit. New isn't always better to a lot of folks. I'll do some more digging to see if I can get a more accurate model number on this. But meanwhile I'll shift this back to a M1860.