That is why it makes so much sense to learn how to knapp arrow heads and spear points. Good gun flints by comparison are quite easy to make from the waste chert one has from point making and you'll never run out.Do not know if flints are in short supply. I ordered some from a guy named GRIZZ and they looked good as far as my knowledge goes. Found him on the SASS WIRE FORUM. He said he had a plenty.
Nice to know I'm not a bad guy I have couple of flintlocks and like them but if you like revolvers you are pretty much stuck with capshaving cap guns doesn't make you a bad person. I sure have plenty of them. LOL. I don't know how long that a flint last's? do you mean how many firing's or the test of time.?