Found on another website:

http://classic.gunauction.com/search/displayitem.cfm?itemnum=14273990

Well there are a couple of issues that jump right out. The extractor for the 2 cartridges are completely different. The second thing if those barrel contours aren't the same, it will take a different lever spring for each barrel.
Lastly those barrels aren't really meant to just be spun off and changed out.
If it stays at or around that price it might be a good project gun.

I did ask about the extractors. The second one is there with all the sights that were on the .50 barrel. I did not, however, ask about the lever spring. Hmmm.

I wouldn't touch it. Lots of problems there.

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^THIS^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

If the thing would come in under 1000, then with the shiloh wood , a person could have it barreled and chambered. Would make a decent project gun provided you can find a gunsmith (not a gun parts changer) to do the work. Or even if the original 50-90 barrel wasn't buggered up it could be put to work as a big bore thumper. But anything over a grand for it would be a big risk.
Can't imagine just how much fun
that thing would be to shoot in 45-110, given the first hand experience I had with a 120 in much the same configuration 40 years ago.

A HawkenSharps

it's a reserve auction, so I doubt anybody is going to steal it cheap.

And shooting the .50-90 with the crescent buttplate could be lots of fun

Actually when Shiloh and C Sharps worked out of the same building way back when they offered a "rocky mountain" rifle with that same Hawken type butt plate.
Neither the 45-120 nor the 50 140 was anything a person would use to shoot more than a handful of rounds at a time..
Leaving it as the Gemmer conversion and having it rebarreled to 44-77 would be a good use for that thing. Use the other 2 barrels for tomato stakes.

Looks like we were both afflicted with the same psychosis,...mine was a Ballard Pacific in .45-120,...and a brutal thing to shoot for any more than a coupla' shots.
I agree it would be a FINE buy at under $1K, and would go the .50-90 route as well. No interest AT ALL in a .45-70 chamber that's been augered out to 120,....and I don't care WHO did the work.
There's probably a nice short .45 hunter barrel there, though.
.....the remaining residue would make for an interesting Ml project.

GTC

Aw hell Greg , I think just about everybody had to have a go at the 120 in the beginning..:(

I thought that the .450-.577 was supposed to take a full case of powder, too.

GTC

I doubt the reserve is low enough to justify the the thought of buying it and modifying to come up with something of value. It is at $1400 at present and I suspect that the reserve is likely in excess of $3000, maybe $3500. Doesn't compute for me, but of course that is just my opinion.