We definitely need a slo-mo film of the action on firing. I left a message to the slo-mo guys who post on Youtube but so far got no reply.
Whatever happens to a break action during firing I feel that it is not what we have been told so far, that the breech face receives a hammer blow from the cartridge head, which flexes the action back, and the explanation stops there. If it does go back it must recover. It does not just gape open from that point on.
A slo-mo sequence might help us understand why some guns shake loose and some do not. And it might surprise us about the utility of third bites and fitting on the circle etc.
So, who knows any slo motion video specialists?
