I just couldn´t stay out of this any longer. I have been shooting original/antique Colt and Remington percussion revolvers for a little over 20 years. What defines a Colt in good condition is that the barrelwedge can be pushed out with the thumb, and pushed back in again, to achieve a perfectly tight fitting barrel, without the use of any kind of tool. That´s the level of fit that should be expected. The Ubertis and Piettas just don´t reach this level of fit.
I have several old, 100% original (all numbers matching including wedge) Colt revolvers with bores that are more or less "shot out" (rifling worn thin), with the (origninal) wedge still fitting that well, that should tell how well designed and manufactured the Colt percussion revolvers really were.
As for Remingtons being stronger, I have seen several original Remingtons with bent frames. I have never seen a single original Colt with a loose cylinderaxle. Coincidence? I don´t think so!
Old Sam Colt was no fool, that´s for sure!
I love both Colts and Remingtons, and Whitneys, and Starrs, and....(insert favourite brand of original percussion revolver here). But I´ve seen what I´ve seen and I know what I know. Both guns are plenty strong enough for anything that a shooter with at least half a brain could throw at them. If they are set up and fitted properly.
So yes, the Ubertis and Piettas are to at least some degree "kits". I don´t know how many replica Rem´s I´ve seen where the cylinder didn´t line up perfectly with the bore. Or where the cylinder stop engaged too soon and left a dragmark on the cylinder between the stopnotches.
Anders Olsson