my understanding, is the cases are eccentric so the rims line up only a portion of the way around... did you have trouble loading a cylinder full, & having everything line up
It's just a matter of putting 'em in the chambers with the rims oriented so that little bit of .22 rim that's on the edge lines up with where the hammer nose hits. Never (knock on wood) had one rotate out of alignment between chambering it and trying to fire it. Yet.
BTW, that's a neat old flap holster you've got next to that .32 S&W topbreak single action on page two of this thread.