I own an S&W 66 in blue finish with the 4" barrel, a nice gun but definitely not a good CC option to my mind.
While I love wheel guns, I think pistols are just a better option for a concealed carry, more ammo, fewer protruding parts, more accuracy, and a lot less recoil.
Is there any reason it has to be a .357 as opposed to say a .40 or a 10mm? While most .357 loads will have a higher muzzle velocity, in longer barrels, that is cut down significantly once you are using the typical 2" barrel on a .357 designed for CC. In fact, with some loads, a .40 coming out of a "4 will have greater MV than a .357 out of "2 barrel. The .40 and the 10mm are also both bigger bullets which equals more stopping power.
- SEAGOON