>>64229633
Maybe something like sodium metal could work? The primer blasts open containment and sprays "grains" of sodium. And the primer itself acts like that hypergolic primer. You'd have moisture issues, especially with storage, but it can be made at home using menthol or just table salt and there are many video tutorials doing it in those ways. I know codys lab tried using it as a rocket fuel too, so if not for guns maybe for model rockets.
