I forgot to mention my little plastic booty that I keep over the nipple
Sorry. Yes, an uncapped nipple COULD result in a chainfire. I get these little electrical connector pieces at work. They ship them with these little protective booties that are just about perfect for slipping over revolver nipples. They are just deep enough to seal the flash hole yet long enough to give me a little nub of a purchase to pull off. As a matter of fact, they might be nice for humid days when you want to load up the gun but keep it uncapped until you are ready to fire it. I haven't tried that just yet, but it MIGHT work
I have about 100 of them, so if I ever need to pull on off and toss it...no big deal
Thanks for pointing out that part, Ben.