I don't have any single action revolvers so I ask this as a question, is it possible for a SA without a hammer block, to pull the hammer back far enough and release it and fire a round without pulling the trigger? If the gun can go off by dropping with the hammer stationed over a round can it go off with a half cock? Is it possible for a fully cocked SA to go off without pulling the trigger if wildly swinging it as if one practiced a super fast cross draw? As I said, I have no experience with SA revolvers although I have many DA revolvers, some without hammer blocks. I think this is where AB is going although he can never escape the live round.