Wait a minute, I just realized mine was the Pedersoli M1873 Trapdoor Carbine, "the enlisted man's model" with 22" barrel.

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The "Deluxe" Pedersoli M1873 Trapdoor Officer's Model has 26" barrel and has already been "Gemmerized" with a wiping stick,
and it has a tang vernier sight +/- Lawence Ladder on the barrel.
Springfield-made originals of that configuration numbered only 477 between 1875 and 1885, produced as hunting rifles.

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Just getting this straight in my mind.
Be careful that the extractor can be fitted for the .50-70's larger rim before re-boring a .45-70 to .50-70.
That may be the limiting factor.
Looking at my Trapdoor carbines, there would not be much left of the extractor on an M1873.

With the purpose-made M1873 action that could have a new-made barrel screwed onto it,
the insides of the action are smaller than on the old M1866 2nd Allin conversion.
The extractor might vanish if you opened up an M1873 for the .50-70 rim.
It would be a pity to have to use the wiping stick as extractor.


Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.