Part I of "Annoying the TSA"
For good reason, U.S. law forbids people from carrying firearms on planes. However, last I checked, black powder "antique weapons" (such as cap-and-ball revolvers) aren't considered firearms.
With that in mind, would it be legal to carry an unloaded (since you aren't allowed to have black powder or primers) cap-and-ball revolver on a plane?
Note: I'm not asking for legal advice, nor do I plan to actually do so if it's legal; this is just a random "what-if" thought that's been bugging me for the last few months.