[ithacaartist]

Another possibility is to have the holes welded back full. If the weld stops short of the internal lands and grooves, it would shoot as well as a revolver, anyway, without a path for extranea to escape the barrel to the sides. One could theoretically go all the way with the weld, but then take care that the lands and grooves are re-established properly. One might also have the existing barrel bored out and sleeved, then fill with weld down to the outsidde of the liner. Either of the last two methods would retain the matching number state of the barrel. It might need a little touch-up of the finish in the area repaired.