Guess I'm a bit late weighing in on this as this isn't a forum I often visit. I had the SU-16B several years ago but didn't keep it long. I scoped it and tried three or four brands of factory loads plus a few handloads and none came close to acceptable accuracy for me, and none were reliable either. They may have improved them, I hope so, but I won't be tempted to try another. I'm not a Kel-Tec basher, I have a P3AT which has been 100% reliable with every brand of ammo and is about as accurate as I could hope to aim with the rudimentary sights and though not pleasant to shoot it is all one can expect for the size and weight, but the SU-16 was a total stinker.