Couple of years ago I got a Stainless ROA from one ofthe more insignificant gunshows in town. Made in 1979 & claimed to be "unfired", until I pointed out some powder residue in the chambers, and on the frame forward of the cylinder, then the $550 price dropped significantly.
I didn't really want it, but had the cash burning a hole in my pocket. Got it home and found more powder residue speckles under the grips. Doesn't look to have been fired much, but, the original owner (before the seller had it) foolishly thought it necessary to use red Loctite to secure the nipples. Took time to soak in acetone & got them removed, then installed a set of Ampcos, and it is a fine shooter. Reading about all those Brits breaking their loading levers or cylinder arbors, or whatever, prompted me to get a benchtop loader for it, which works great for all my other revolvers, too. The Ruger may not be significantly more accurate than my other C&B revolvers, but it does have a remarkably smooth action and is a pleasure to shoot.