I should also note about those practice loads,

this is five of them fired at 100 yards

The black is 5.5" across.  Not stellar accuracy, but for a plinking load intended for shorter distances, I can live with it.  Especially as the wind may well have messed with it; there was a nasty crosswind that gusted right along the target stands that may have spread it a bit.  It'll be tried again, and we'll see.