USFA's are as beautifully finished on the inside as they are on the outside. The machining is flawless so out of the box, they are very smooth and as Olsherm says, feel like a Swiss watch when working them. Colt's and other replicas need an action job, USFA's just need lighter springs. They're a full-sized SAA so they are heavy, even with 12 chambers. Not overly so and certainly not unmanageable but it takes some getting used to. Mine tips the scales at 44oz, while a Rodeo II .38Spl is two ounces lighter, a .44Spl five ounces lighter. A .45Colt eight ounces lighter but it's an earlier USPFA which utilizes Uberti parts. The later domestic guns seem a little more robust. All are 4¾". It is a lot of fun to shoot. You 'can' load two rounds at a time but I find it to be easier and quicker to load them singly. Unlike a Single Six or centerfire SAA, where you can just drop cartridges into the loading port and gravity takes care of the rest, you have to deliberately insert cartridges into the chambers. My impression is that it is a tackdriver but I've never got around to doing proper testing.