"Yeah, but I'm not really the best at that kind of thing. Still, making fireworks and making really simple ammunition isn't that different." Usopp considered, before adding, "There's other people here who know how to make gunpowder too, y'know." I'm just the only one who got drugged silly yesterday. "But I think there's only a limited amount of the chemicals in the building. Even if we go get as much as is put out every night, it'll be a while before we've got any really useful amount." As in, enough to share.