What is the purpose of patch and round ball?

The patch was a small piece of cloth or leather that was used to help load the round ball into the muzzle of a muzzle-loading firearm. The patch served several purposes:

- It helped to create a seal between the ball and the barrel, preventing gas from escaping and reducing accuracy.

- It helped to protect the ball from damage as it was loaded into the barrel.

- It helped to lubricate the barrel, reducing fouling and making it easier to load and unload the firearm.

The round ball was the most common type of projectile used in muzzle-loading firearms. It was typically made of lead and was cast in a mold. Round balls were relatively inexpensive and easy to produce, and they were effective against unarmored targets.