Thanks, guys. Will have to navel gaze on whether I am ready to part with the cash.
I think that the difference in barrel length is fairly negligible if shooting at moderate distances.
If someone were a competitor or wanted to fire at longer range, the Uberti barrel length, rifling and ball size may combine to make a difference.
But if shooting offhand at moderate distances the barrel length alone probably wouldn't matter that much.
If the Pietta chambers hold more powder, and had larger capacity for loading conicals, then that could also make the added barrel length a wash.
It depends on personal preference, your expectations and what type of shooting that you intend to do.
And then each individual gun can produce slightly different results.
There can also be a difference with the balance or ergonomics of holding the gun in your hand.
I've struggled with the same decision at times, but IMHO it boils down to personal preference more than any single feature.
For instance, the Traditions Pietta offers a 1 year warranty.
It depends on what a person thinks is more important to them.
Gun cost, barrel length, spare cylinder price, ball size, chamber capacity, ergonomics....personally someday I want one with an adjustable rear sight.