For a while now I've read that bolt/trigger springs on the Italian cap and ball revolvers were "consumables" and break fairly often. Some claims I've read even say theirs break every couple hundred shots. I thought this was all BS, but after roughly 2.5k rounds through my Uberti the bolt spring snapped and the cylinder stopped locking up. Needless to say, new Wolff springs are on order to replace the flat spring that snapped.