I'll use the PBA ammon in my Crosman 1377 pistol, they give me pretty good accuracy and don't harm the gun,,,, but I won't use them in any of my springers.....
As for their effectiveness on small game,,,,,,,they are very hard pellets, it's not uncommon for me to find the pellets that bounce off my backstop and even the pellets that stick in my backstop looking almost completely undamaged at all. This being said I doubt you'd get very much, if any, pellet expansion upon impact on a game animal. I have no doubt the pellets would take out a bird or small game animal at close range with a good accurate shot, but other than my 1377 pistol I'm not hunting with them. The predator pellets are my prime hunting pellet, work fantastic on small game.....
As for the "hog tale",,,,, I saw the video also but I personally don't plan on hunting any hogs with those pellets anytime in the near future

Jeff