TYM
I just pulled apart my FIE 1851 Navy in .44 Brass frame. I tried a Pietta cylinder from an 1851 Navy Lawman which is a .44 steel frame with ebony grips. It is a very standard Pietta 1851 .44 frame.
The Pietta cylinder works perfectly in the FIE. Fits on the arbor. Nice tight gap. Action cycles perfectly. Line up and lock up are good. The rebate is at the right place.
I can't help you on the Pocket but it is possible it is .31 not .32. Photos might help.
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Doc
My reading of history convinces me that most bad government results from too much government. Thomas Jefferson
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