I have one and my experience was that it wouldn't pattern with any ammo I tried with the factory choke tube (and I tried quite a few). The next move was from a local gun shop...They suggested a Rhino choke tube. Better, but still not what I would call good. Then someone recommended Nitro ammo (at that time from New York state...He has since moved). That did make a substantial difference...This combo was a patterning dream! There wasn't a 1/2" that didn't have a pellet in it at 40 yds. I don't think a fly could have survived a 40 yd. shot from that gun...
Now, you paid a price in recoil! I always tell people that I wasn't sure who was getting the worst end of that deal, me or the turkey! It hurt! But, if I was "on", no turkey walked away...That and the muzzle blast was horrendous! I ended up getting a couple of game ears because of it.
It was kind of fun to shoot because it flattened anything that was in it's path...Thick brush, branches...Hah, that thing would clear a path! Of course you better have the recoil pad right on your shoulder or it felt like a trained boxer just blasted you with a jab to the chest!
It is a novelty, I'll give you that...And I wouldn't discourage anyone from owning one...Just be aware that that baby will KICK! At least the way mine was set up...