RE: Taurus 605CHB or Smith 640?
Another thought came to mind, Look for a used Colt Detective Special, Agent or Cobra.6 shots instead of 5 in 38 Spl.If you're going to carry it ,it will get banged up anyway. A used gun might be a better choice.There are allot of Used Smith's Colt's and Ruger's out there.
Ruger Redhawk