NO, don't remove the breechplug. This is a Common thing & ya don't discombuberate the rifle cause ya need to pull a ball.... :shake: Needing to remove a ball, charged or dryballed WILL happen again, unless you park it on the shelf or in a closet. But if you shoot much at all, you WILL dryball it eventually & this will come up again.
Options:
1: Shoot it out. It is the easiest.
2: Blow it out with compressed air. Remove vent or nipple (if removable) take a air nozzle with a Rubber Tip, turn the air on full blast, seal the rubber tip against the flash hole & blow the ball & charge out into the ground. (Note: lots of times a steel tipped nozzle will leak too much around the hole & not have the pressure to blast the ball out)
3: Blow it out with a CO2 discharger.
4: Pull the ball with a ball puller. If the rifle is unfouled, it will usually pull quite easily. If it is fouled I suggest you lube the bore with a jag & patch with some lubricate like Ballistol, WD40, any penetrating oil, motor oil, patch grease, whatever.