Speaking of powder, the below clip has a discussion of waterfowlers in the UK using fine grained cannon powder from artillery rounds to load their guns. Featured in the discussion is a 10 ga. hammergun, an 8 and a 4 gauge muzzleloaders. The 4 gauge was a take no prisoners bushwack'em on the water or ground (covey of partridge) for the market. With the 4 gauge, the concept of lead was restricted to the pronunciation of "lead" rhyming with "ed" and not "bead". The 4 gauge was converted from a flintlock to percussion cap shotgun. Primitive for sure. Gil
https://www.youtube.com/watch?v=OLVJo6CDGmM&t=1416s