A brief introduction to some different types of revolvers.
Ruger "full size" revolver
S&W .38 caliber revolver
S&W .38 Exploded View
S&W .357 Magnum
S&W .357 Magnum exploded view
Excellent gun for reliability and concealment. Only holds 6 rounds; revolvers are typically slower to reload than their semi-automatic cousins. However, revolvers have fewer moving parts and are therefore more reliable.
Bulkier than the .38, it also packs a bigger punch.