I got this gun for christmas. FELL IN LOVE WITH IT!!!! I went through two bags, suprisingly REALLY accurate for its size and size of the stock 10" barrel. Again, the 50.cal gun was a real featherwieght with a heavyweight punch. It was love at first sight. It must shoot about 18- 23 bps on psp ramp with an out-of-the-box fps of about 280-310. with supreme efficiancy (1,000 balls from a 3,000 psi tank)! I really see no draw-back in this gun except its hard to find 50.cal paintballs, (but thats not a huge problem, theres one store that sells them nearby my house and i can always get them online). People say theres a drawback in range for 50.cal guns, but i dont notice it . Hope this review helped.