Haven’t checked Pietta’s current spec, but the Pietta 1861 Navy Sheriffs I own have 5-1/2” barrels, and the 1851s have 7-1/2” barrels. Here is a photograph of few of them.
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And just for comparison, Pietta 1860 Army next to their 1861 Navy Sheriff. As I said earlier, the 61 is kind of like a scaled down 60.
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The Sherrif’s aren’t historical so never interested me much, but I bet they’d make a handy field revolver. Yes the other Piettas are offered in the correct original barrel lengths, but for reasons unknown they make the 1861 Navy with an 8” barrel. Uberti makes a ‘61 with correct 7 1/2” but just no... I’m still upset from the horrible Pocket Navy of there’s I had to sent back last week.
The Piettas accept the common and cheap .375” balls. Ubertis really work best with .380” balls, which can be bought but are harder to find and more expensive across the board. Also there’s the arbor length issue with the Ubertis. The Pocket Navy had a horrible arbor setup. Pietta actually gets that area correct. Last, IMHO the Ubertis come with too light a mainspring. This is not good for the open top Colt’s.
These issues are steering me away from them and towards Pietta.