Bedbug how would I remove the breach? and for that matter to all you suggesting I shoot it out how much powder should I use?
Removing a breech plug is a major endeavor and can be risky, especially for the inexperienced. That's usually only done as a last resort and is sort of an extreme measure for many folks to attempt competantly.
As much powder as can be fit should probably be dribbled under the nipple. Usually only a few grains is needed to expell a .49 patched ball that's loaded dry without powder. But a larger bore would need proportionately more powder.
But if some of the air from the powder firing off leaks past the paper towel, then it might not be expelled. So dribble in some extra powder if you can by helping it to flow into the powder chamber. Since the bore is larger you'll need a little more powder to create enough pressure.
If 5-10 grains could be put in there it would be better then using less.
Also, I don't want to steer you wrong but tamping down on the paper towel with the ramrod before firing it off may help to seal in enough of the gases to actually have a chance to expell the paper towel.
The risk is that if it doesn't shoot out then the paper towel might be stuck even more.
But tamping it down increases the chances of it being shot out rather than having the air leak past the paper towel and it not be expelled.
Even if the paper towel only moves up the bore 1/2 way, then it will be easier to pull it out the rest of the way using an accessory hook.
Don't be afraid to shoot it out. The amount of powder is still very small for the size of the bore.
It could be aimed into the toilet in the bathroom. Wear ear and eye protection and turn on the exhaust fan if you have one.