Peter has the right idea, the best possible solution, by far. An Arietta is too fine a firearm to chop up, except as an absolute last resort! Heck, my hands shake when it's time to take a hacksaw to the barrels of a BRNO or a Laurona !!! You'd end up with a wonderful 28 gauge and then could build a rifle on the monoblock created from the damaged barrels at your leisure.