Well done, a picture is worth a thousand words.
I have a question on rimlock: If the magazine is loaded correctly to start with (no rimlock) can rimlock occur just by carrying the gun or shooting it. The only rimlock I have had, occur when I hand loaded the mag. and I think loaded the shells wrong. I now use a speed loader to load my mags. (the loader pushes down on the back of the already loaded shell) and have had no more rimlocks.