Well, I know the theory and I know how the forces are transferred. It was not by design, I was just on a hot peg on a driven day with pheasants shooting overhead through a gap in the tree line. I was on a bit of a roll and , typically, shooting a hammer gun with Jones under-lever. This is not the quickest mechanism and I was firing and loading as fast as I could. I had just fired the right and opened the gun, when a pigeon hove into view, he saw me, veered off and offered a going-away shot as he headed for the canopy, I still had a shell in the left barrel and just had time to shut the gun, no time to work the lever back to lock. I shot the pigeon.