A single action revolver could have the same risks as carrying a semi-auto without a round chambered except the revolver would have less noise, less time delay, but probably less rounds. I have been in an incident when a carload of five youts pulled up behind me at an ATM machine in the handicapped spot right behind me. I had a Colt Pony Lite 380 in my pocket, but a Glock 30 45 ACP in my car. I tell you that I felt only slight comfort from the 380 and grabbed my card and cash before sprinting to my car while they were arguing about who was going to get me. It is locked and loaded for me.
Youts! Happened last week.
Pinheads had no idea who they were pissing off