I don't think you need a federal license to manufacture ammo (reloading is a thing). You may need a federal license to manufacture ammo as a business, and you definitely do to manufacture firearms as a business (which are both unconstitutional infringements) but I've definitely heard of people selling ammo they manufactured/assembled/reloaded themselves.
I don't think you need a federal license to manufacture ammo (reloading is a thing). You may need a federal license to manufacture ammo as a business, and you definitely do to manufacture firearms as a business (which are both unconstitutional infringements) but I've definitely heard of people selling ammo they manufactured/assembled/reloaded themselves.