Annoying little bits rolling back and forth.
IF you can be sure tht the offending piece can be positioned to the muzzle or back to the forend hook, I have in the past
done that. Then clamped that area of bbl, ribs & hook if needed, and with the bbl in position vertical to keep the bit against
that end, the heat that area till the solder just shows melting in the joints.
That will swallow up the little piece inside back into the melted solder.
Nothing needs to be done as far as adding any solder to the joints, or fluxing them.
Don't disturb them,,just melt the solder to attach that piece inside and then let it cool an solidify again.
Don't over heat, no need to, it's lead/tin solder. The blue won't be harmed'
Let it cool on it's own. then unclamp.
There are usually several spacers betw the tubes inside the ribs, These are usually about 2 inches long and built up of stacked pieces of thin metal to make the necessary thickness.
Some just sheet metal folded over a few times and soldered in place.
Often these spacers will block the passage of a piece of loose solder from rolling the complete distance muzzle to F/E hook. But there is usuall enough space for the water of rust bluing
to pass.
So be extra sure when listening for the rattle that it is actually making it to the muzzle or back to the hook before doing anything drastic at either of those points.
The little begger may actually only be stuck in betw a couple of those spacers further down the way.
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