Capping/ decapping wooden devices shown are suited to primers in brass shell hind ends.
A wee bit lost in a muzzle loading aspect. ( Yes black powder could be used.)
A common muzzleloading shotgun or rifle had an attendant ram rod for loading. And cleaning. A range rod for easier use cleaning was longer. And one piece preferred to prevent threads loosening when a tight patch was used to clean with.
The 1930 Michigan manufactured shotgun cleaning rod displayed was partner to the breech loading shotgun era. Welcomed I'm sure at the time but a page or two behind the muzzle loading era.