Hi, I disassemble and clean all my C&B revolvers after shooting with BP or sub. Using conversion cylinders with smokeless powder, no disassembly is required, just a bore cleaning with solvent is done.
To simplify BP cleaning of the cylinders, I now don't remove the nipples. However, a good antisieze is on the nipple threads. When shooting with a dozen extra cylinders, this saves a lot of time compared to removal of every nipple.
Regards,
Richard