Hi,
With the right ball, patch, and lube combination you should not need to clean between shots. I use Balistol and water, 0.595 caliber balls and 0.020" thick patches in my 62 caliber guns. I shoot all day without cleaning or needing to hammer a ball down. During the 18th century, rifles used by American soldiers were not specially built for military use. They were civilian hunting guns. There were British and German military rifles in use but they loaded just like the civilian versions.
dave
The problems you pointed out are some of the reasons smooth ore muskets and fowlers were preferred by most military men and civilians.
A rifle is a specialty weapon ( and a delicate one, too ).
A smoothbore is much better suited for military use, in lots of ways.
I would imagine that when things got hot and heavy, and close, the rifle shooters dispensed with the patches and shot bare balls; sometimes multiple balls in each shot.
If one or more Indians, French, or British soldiers were coming st you, or had you in their sights, you would not be fumbling around with a patched ball.
Dump in some powder, slap an are ball in the muzzle and smack the buttplate on the ground to more or less seat the ball, prime, throw the gun to your shoulder
and slap the trigger.
Then run like Hell!
Riflemen had their place in specialized situations, but also presented a host of other problems when used on a large scale in combat operations.
Washington came to the same conclusion.
For day-in day-out military operations as part of an organized, uniformed army, the smoothbore musket was by far the better weapon.
The musket was easier to clean, maintain, and could take a bayonet, and be loaded with paper cartridges containing a single large ball, or buckshot, or a load od u kshot and single ball.
It had a stronger stock that was far less prone to breakage. It was a lot easier to pull the load at the end of a stint on guard duty.
The list could go on.