Has anyone used a ferrorod as a flint?

[PathfinderNC]

Hey friend, I think you’re traveling down two wrong paths.

Good flints are easy to obtain and rust is not your friend.

^^^Right here^^^

 

[Flintandsteel]

You got more problems than needing flints.
What Banjoman said.

 

[Erwan]

I'm convinced that ferrocerium can help a wheelock (I've tried it) but I don't think it's a good idea for a flintlock. If you can't get flint, you can get other hard metamorphic stones that'll do the job properly.
- https://www.ancientcraft.co.uk/post/a-guide-to-some-of-the-knappable-rocks-around-the-world