Sounds like I got lucky. I bought two pounds of flints, last summer. There were 110 flints, in that batch, of which, about 20 were not usable, or salvageable. Most of those Ok to good flints fit Chambers large locks and fusil locks and the rest were definitely musket flints, which is OK too. The OK flints could use a little work, but about a third of them were good to go, as they were.