If you are talking about the Uberti copy of the Remington .44 cap-and-ball, it's a good firearm. In 1977, I canoed down the Missouri river from just under the Garrison Dam down into deep South Dakota. One of those mid-June to September trips that one would like to relive but never will. I bought the Remington in a Sporting Goods Supply store in Minot where we bought our Grumman 17-foot standard canoe because nobody would sell me a real gun. I was a 19-year-old Canadian, so a black powder piece was the best I could get. Oh, and Bore Butter was just coming out and they actually GAVE me some tubes to test out if I promised to bring them back a report on the stuff -- if I lived, of course. Which I did.
I loaded the thing with round balls and either Pyrodex P or FFFg, depending on what I had available. The gun was VERY reliable. Even immersed in water to a depth of my height going under off a sandbar in the middle of the river, every chamber still fired. Amazing. The gun sat in a puddle of water one night when we got flooded worse than I've ever seen -- just outside the tent where I lost it in the dark and none of our flashlights worked -- and it still fired every chamber the next day. Go ahead, don't believe me, we didn't believe it ourselves.
Things that might break? The little leaf spring that pushes the hand forward can break. You can still cock the gun Wesley Hardin style by pointing it down in front of your tootsies so that the hand falls forward by itself to engage the cylinder notches on cocking, but having a spare (or two) of that spring won't kill you. The trigger-sear leaf spring, as I recall, can also break although that one broke years after I got back from the river when I was just on the range playing with it (yes, I got it back into Canada! And it's still there, because I'm down here so it's on the wall of a friend's home now.)
The ram-rod would unlatch and fall down allowing the rammer to block the cylinder at first on full-power loads, but I filed the notch a little deeper (yes, I had a small tool-kit on the river) and that stopped that. The blue came off from the gun being daily wetted down and dried and cleaned at night and turned a purple-brown color that looks so neat. Now they charge you to give you that finish.
If you put the hammer in the notches in between chambers as a "safety" when six shots are loaded and then roll down a steep hill the notch can break the tippity-tip off your hammer so it's not a safety-notch-hammer anymore. Better to load five and keep it on an empty chamber but at least it didn't go off.
If you pound in tent-pegs late at night in the driving rain and hail using the gun as a hammer, you can chip one of your wooden stocks.
Mine shot a little high, say about 6 inches above the normal "six-o-clock-hold" point of impact at about 25 yards, but she was dead on otherwise. If you shoot a big carp sunning itself on the dead-calm Missouri River the fish sinks so quick you cannot grab it and you scare the Bejeesus out of the guy behind you in the canoe who is sunnin' himself as well and half asleep. I only tried that once. We lost all our fishin' gear in a flash flood and didn't get any back until the next town.
I had a zillion adventures with that black-powder gun that summer. The Remington was not my favorite B.P. pistol and wouldn't have been my choice except it was what I could get, I used it, and it never let me down and I cannot say enough good things about it and doubt any other B.P. pistol could have filled it's boots in 1977 or 100 years earlier.
This photo was taken a day out of Beaver Creek, North Dakota down near the South Dakota border about the 5th or 6th of July, 1977. I remember the 4th of July celebration that year we spent at the Beaver Creek campground and it was a jubilant time and we -- a pair of young Canadian adventurers trying to learn about the Missouri the hard way -- were treated like kings by all the people there. I will never forget them and think warmly of that summer and always will.
The gun is tied on to me because I sat in the front of the canoe. (I have never sat in the back of a Grumman canoe -- or any other canoe -- except once in one that was in a guy's back yard in Brandon, Manitoba. He asked me what I was doing and I told him that I had a rather good deal of time sitting in a Grumman canoe, but had never sat in the back and wanted to see what it looked like. I think he thought I was spoofing him or something).
Garrison dam threw up sandbars all over the river that came and went daily and were never on Corps of Engineers maps. I remember pulling the canoe across a sandbar in the middle of the river once where it was about 500 yards wide and we were right in the middle. You couldn't see the sandbar, it was just at water level but you could walk right on it. I was telling my friend that "People on the bank are going to see me and think I'm walking on water." He just looked at me bored and said, "As if you don't usually act like you can walk on water..." at which point I walked off the end of the sandbar in splooshed down once again into the cold Missouri. I started tying the gun into the canoe instead of to me after a few times like that, but I still tied it to me when I was on shore after stepping into a bog once off a log -- I swear the sand hardly looked any different -- and went up to my neck. The pistol went "clunk" on the other side of the log and to try to get myself pulled out far enough to reach the pistol meant my nice-new Civil War style boots seemed to be staying down under where they were. I eventually got out of that mess with my boots by curling up my toes and pulling myself up until my boots I'd bought when we canoed through Bismark started to slide off and then sticking my feet back down in them, curling the toes, and hauling up again. After that, I tied that darned gun on all the time. This photo would be taken after that little event.
If I sound opinionated it is because I would consider my experience with that particular B.P. pistol to be listed as closer to "extensive" as opposed to "somewhat". Get one if you want one, it'll win you over.