It may be just coincidence, but over the years I have examined hundreds if not thousands of break open shotguns, both double and single, and it looks like folding shotguns do not come off face as often as the rest.
Most of the folding shotguns examined were fairly cheap, usually Spanish and Belgian, some British, so quality is not the main reason for their holding together so well.
Before going on to theorise about this I would like the input of others on the topic. If you have any experience with folding shotguns and their durablity please feel free to add your observations.
