You posted that there is a step in the chamber, and if so it is a 44 Russian. The Model 3 American platform was never offered in 44-40, only 44 American and 44 Russian, with a few 44 Henry rimfires also built.
Forgot to add that the 44 American/Russian Old Old Model has a cylinder that was only 1 3/8" long and the standard 44-40 round was 1.59".
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Gary
SWCA 2515
Last edited by glowe; 06-21-2020 at 06:31 PM.
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