I've used the stuff before. It is loaded HOT and is absolutely devastating against those nasty water bottles and pesky bois d'arc apples. Blows 'em into little tiny pieces.
I would NOT use them on small game that I intend to eat; there won't be much of the critter left intact.
This load, along with CCI Velocitors, are the only .22LR loads I've used that seem to go supersonic from a 4" S&W M18. I say "seem to" because I've never actually chrono'd them, but they make a very loud sonic "crack".
HOWEVER...
[The catalog] states [Super Max] can be fired in any .22 L R gun in good condition.
Although they're probably not outright
dangerous, I would NOT fire these rounds in a old and valuable semi-auto pistol such as a Colt Woodsman or a High Standard. I've tried them in a variety of newer semi-autos, and I could tell that they batter the action a good deal harder than regular high-velocity .22LR, so I would be concerned about premature wear on hard-to-replace parts.
That said, they cycle modern semi-autos with vigor, and have never stovepiped on me.
Also, they're reasonably accurate, albeit not quite as accurate as mid-grade high-velocity target loads such as CCI Mini-Mags or Federal Auto Match. Of course, as with any .22LR ammo, YMMV.