I saw a used stainless Old Army the other day in a shop for around $350. They are enough that I can't justify buying one myself. I own a couple blackpowder revolvers and shoot them at most, once a year. Before I was old enough to buy a cartridge handgun, I bought myself a Ruger Old Army and shot it quite a bit. It certainly is the finest BP revolver I have ever handled. Like all guns I sold, I really regret selling it. I don't remember what I paid for it, but it must not have been much because I was working for $3.35 an hour part time. I find that I don't shoot the BP revolvers a whole lot at a session. It takes so long to load, and it is so dirty that I might fire maybe 24 rounds and call it quits.
It sounds like you just want a black powder revolver for fun, and shoot occasionally. I bought a 1860 Army repo from Cabellas for $119. I have fired maybe 100 rounds out of it total over maybe four years. I have had one problem with it. The screw in the barrel wedge loosened and fell out once when I was firing it, and I couldn't find it. I went right on shooting it making sure that the wedge was tight in the gun. I later bought a few replacements from Dixie Gun Works which fit fine. The gun is surprisingly accurate. I would have to say it is pretty close to as accurate as any standard out of the box handgun I own.
The other BP revolver I own is a Colt Walker repo. I always wanted one of these and traded a beat up dirt bike for it. I have never fired it.
