I have one chambered in 50 action express, not 357 magnum. It's a very accurate gun and pretty too. It's finicky about what ammo it feeds. Hotter loads that burn up all of the powder are the only way to go. Lighter loads will clog the gas system with unburned powder. It really is a novelty gun. If you buy it in that spirit, you might really enjoy it. Despite what the movies show, it's virtually useless as a self-defense gun.