Interesting to see Flint, and that specific snapping lock is one I always wanted to make.
Yes Snowmoon, they were not backwards when it came to loading these old guns.
Here is a depiction, not all to scale, of different accessories from the early 1500's..
Picture might turn up eventually!

Did turn up, the pic that is.
Do you see the wad punch and balls and patching?
also jags, breech scraper and such?