I only shoot at the birds that I know that I have a reasonable chance of hitting. No sense in wasting $hells.
As for Prairie Storm, my buddy and I were out pheasant hunting last season. He had bought a new box of PS - not sure of the exact load, but most likely the standard off the shelf Prairie Storm 2-3/4" #5. A rooster flushed, and my buddy hit is hard at ~35 -40 yards. From my vantage point, I saw pink mist, feathers and a carcass. It seemed to be raining feathers for 30 seconds. My dog Dakota, went to retrieve the carcass and just stood over the bird, refusing to retrieve. We went over to investigate and the bird was really ripped up.
When we were in Montana earlier this year, he was shooting the same batch of Prairie Storm and shot a sharptail grouse, at~40 yards. The back of the sharptail grouse was essentially gone. We now jokingly refer to Prairie Storm as Prairie Skinner.
:cheers: