If a Colt or Ruger-pattern SA revolver is all you had, and you practice with it, you would be fine.
Note the statistic quoted above - less than two rounds fired (with .380 or .44 Magnum!) until mission accomplished, in the fairly rare instance a handgun has to be used at all. That would mean 3-4 rounds left, not to mention the J frame you'd likely be carrying as a backup.
