I've owned and fired these and they are great BP guns. That said, I find shooting reproduction Uberti cartridge revolvers easier and more fun. They make an 1858 conversion revolver with similar looks and balance to the Ruger.
What caliber did you choose?
45 Colt, the nice thing is that if you want to make up BP cartridges for it they perform well. Good looking guns, they don't give up much to the Ruger and you can run smokeless or black.
Not all chain fires are caused by muzzle-end errors. Sometimes it's the cap end:
https://www.thehighroad.org/index.php?threads/chain-fires-and-black-powder-loads.665490/