Here's the finished 500 with only basic texturing; I also need to separate the muzzle brake from the barrel so that it doesn't look like it's integrated into the barrel (the brake is detachable). This model, like the Desert Eagles, is built for use in a first-person shooter, since the cylinder, crane, and ejector are all detailed and moveable.
Also note the smooth-shaded screenshots of the .50AE Desert Eagle next to the correctly-scaled Smith & Wesson 500 - the 500 dwarfs the Desert Eagle, but in real life the Desert Eagle is only a couple of ounces lighter than the 500!
-CR