I can figure the first two out, it's the last bit I have a couple of questions about.

First, I have two Pietta 1858 revolvers and an R&D conversion cylinder. This cylinder probably won't work in the Uberti since, well, it's not a Pietta and that's how the cylinder was sold. Am I thinking correctly on this point?
Second, I picked up some of the Pyrodex .44 Pistol Pellets to try out in my other revolvers. (I know, it's cheating and bad juju but I figured it was worth trying out just for the sake of trying out.

Am I offbase on any of my thoughts? Am I overthinking things?
Thanks!
