Woohoo! A new way to abuse the CDDA mechanics!
But that’s a tricky one to fix. Maybe it should be changed so a grenade doesn’t yield any gunpowder… it would make much sense if you found a legit military grenade, but it would balance things out at least.
Maybe a suitable way to fix this would be to add a ‘makeshift grenade’ recipe which isn’t made from gunpowder, and add a different ‘grenade’ recipe which is made from more high-end ingredients, or something along those lines.
Because I really can’t see how a military grenade I found in a high-end military base has the same effect as a grenade made from an empty soda can full of old nails, the pliot light from a lighter, and a long string from a curtain rod.