I forgot to update this after shooting it.
It's fun!
I ran about 10 shots through it using 25gr Pyrodex P and a patched round ball. I brushed and swabbed the barrel every 2-3 rounds. It was never hard to load and was pleasant to shoot with 25gr (full 38special case). Accuracy wasn't bad, maybe 6" at 25yds, but the groups were 6" high using a dead-on hold. My target was a 6" "dot", so aiming at the bottom of the "dot" would put the shots closer to center. I'll try a slightly warmer load and see if this brings it closer to POA. If that doesn't work, I'll find a taller front sight.
Clean up was a bit more than I'd like given the low number of shots. I swabbed it out with patches saturated in BP-specific cleaner, then brushed, then swabbed some more. After the bore looked clean, I cleaned the exterior surfaces and then ran hot soapy water down the barrel, swabbing and forcing soapy water through the nipple. I ran a few patches down the bore until they started coming out clean. I dried everything well, ran a lubed patch down the bore, then a couple dry ones, reassembled the gun, and put it away. I checked it yesterday and saw no signs of corrosion.
Chris