My first jezail

[Atlantia]

Originally Posted by RDGAC

Oh god... why does this happen to me!? I'm now in deep trouble. I have a copper brush jammed in the damn thing and I can't get it out. Nothing I have will do the job and I'm desperate to remove it - it came cleanly off its bloody cleaning rod, threaded portion and all, and nothing I do will grip it or remove it I am, needless to say, pretty damn upset right now, especially since I was getting somewhere with this mysterious obstruction; this time the cleaning brush stuck far too hard for me to extract it, and the usual trick of twisting the rod clockwise to slowly extract it has now left me with an immovable blockage in my new and beloved gun!

You might be able to snag it if you use a woven wire 'noose', like a snare. Use a long wire (and a torch of course to guide it) to push it onto the end or the metal body of the wire brush and hold it in place while you pull it tight, then either pull or twist using a handle until you get movement.
I'd try a few different ones made from unbreakable lines like woven wire or nylon starter cord.