I absolutely love this gun. Dead on accurate. Fit and finish is superb. Despite other reviews, you are able to spin the cylinder with cartridges in it. I guess they fixed the clearance issue in subsequent models. The shells are all metal. They are dimensionally identical to a .357 magnum cartridge. I chambered a .38 and a .357 mag cartridge in this gun as though they were made for it. The ONLY negative things I can say about this gun is about the plastic CO2 seating screw handle. Why did they do that?! The grips feel a little cheap too. I've got rosewood grips on order for mine. $100 on EBay. Those will make a world of difference. AND the supplied speed loader is too big! You have to put the shells in on angle and let them go halfway in. Again...why?! A REAL .38 or .357 speed loader works perfectly. I happen to have some, so it's no big deal for me, but it would be another expensive fix if I went out and bought them just for this gun. I wouldn't have bothered otherwise. Sure, loading the pellets in those cartridges is a pain, but that's the price of realism. Make sure you order at least a dozen extra cartridges. You won't regret it.