I have a bunch of the Pocket Models, Navy and Police. I describe them as the 36 caliber C&B revolvers that actually recoil! Not a lot, but enough so you know you have pulled the trigger.
I believe all of mine are Uberti and span several decades of production. The earliest ones, from 1973, have the stiffest mainsprings I have ever felt on a C&B revolver of any sort. The newest, 2007, has a good trigger pull and is an accurate revolver. I have 5 1/2" and 6 1/2" barrels.
I looked into having one converted to a centerfire cartridge and it is possible. Damned expensive, but possible. Lot's of work would need to be done and reloading would have been required, but when I hit the lottery, I will get it done. For now, I really enjoy using the little revolvers as C&B. When I need a carry piece, I grab something else.
Kevin