I'm considering a project to seperate my 240V and 120V circuits into
two seperate panels (implementing a battery backup system between to
protect power on the 120V circuits, but that's a whole 'nother
discussion)

My question today is whether anybody knows of a good way to remove the
fire caulk that's sealing in all my electrical wires? I'd like to pull
some of them back up through the top of the wall and feed them down
between the next set of studs to a new panel. I haven't found any
products for removing fire caulk...so am I stuck risking the chisel
method, or replacing wiring, or is there something else?

Thanks in advance for your recommendations!