Shiftyer1,
Or, just keep your loaded cylinder in your pistol and cap it the way folks normally do when they shoot them. There is a lot more protection of the capped cylinder when it is installed on the gun than there is when not. I have been shooting cap and ball revolvers for 30 years and never has there been a need to have a loaded and capped cylinder outside the gun with any of the revolvers I have shot, and that includes the little Wells Fargo 49 without the rammer. Cowboy action does not allow it and most of the local muzzleloading matches have rules against it as well (i.e. no capped chambers until you are on the firing line). You might think they are being overly cautious and scared of liability, but that is the world we live in.
If someone was using these for defense (like they were used in the 19th century) than maybe you could make a case for carrying a capped and loaded spare cylinder and the risk, however slight it might be, could perhaps be easily justified when weighed against the risk of facing an armed opponent with an unloaded gun, but today that probably is not the case. Even than I suspect spare cylinders were not all that common and you were more likely to see someone carrying additional revolvers which was obviously the faster reload.
Or, just keep your loaded cylinder in your pistol and cap it the way folks normally do when they shoot them. There is a lot more protection of the capped cylinder when it is installed on the gun than there is when not. I have been shooting cap and ball revolvers for 30 years and never has there been a need to have a loaded and capped cylinder outside the gun with any of the revolvers I have shot, and that includes the little Wells Fargo 49 without the rammer. Cowboy action does not allow it and most of the local muzzleloading matches have rules against it as well (i.e. no capped chambers until you are on the firing line). You might think they are being overly cautious and scared of liability, but that is the world we live in.
If someone was using these for defense (like they were used in the 19th century) than maybe you could make a case for carrying a capped and loaded spare cylinder and the risk, however slight it might be, could perhaps be easily justified when weighed against the risk of facing an armed opponent with an unloaded gun, but today that probably is not the case. Even than I suspect spare cylinders were not all that common and you were more likely to see someone carrying additional revolvers which was obviously the faster reload.