Random thoughts on a wide range of topics in real time.
Yeah, that could be a 'bit' of a problem...
At least if the ball's not stuck too tight, you can use a priming charge (or percussion) to blow it out the end of the barrel. Ball pullers are sometimes problematic.
If that's the ball I'm thinking of, it was halfway down the bore -- any charge that would have cleared would be risking a breach.