To be a little transparent, I doubt we'd be worrying about raw materials for ammunition—even though it has been quite a while since the world ended—but it's always a given to secure key points such as the source for obtaining sulfur among other things. And yeah, black powder isn't strong enough compared to smokeless gunpowder we use in our current guns but there's always another way to make use of them—and yeah, muzzleloaders were still a thing.
'Also, in my honest opinion, who'd fucking give away the chance to fire a fucking cannon at a deadhead?'
Going back to our current conversation with Quinn and Jesus, our giantess looked like she expected a different answer while Jesus looked at me like I was—for the lack of a better term, Him.
"You can make that shit, my guy?! That's incredible—"