The problem with a small frame revolver is the fact that it has such a short sight radius, it can be difficult to shoot accurately if you happen to be at greater than contact distance. If the individual shoots frequently and is competent, then the small frame revolver/small pistol may be effective.

I do disagree with the sentiment that you shouldn't or won't need a reload. You should plan to have at least one reload, just to be on the safe side. What if there are multiple persons in the area that for whatever reason want to go to you, and aren't intimidated by your gun or you shooting their buddy. Do you have enough? Personally, I feel it better to be safe than sorry with regard to that. On top of that, the extra reload thing is a good idea on semi automatics due to potential failures in which the easiest way to clear is to change magazines.

Unless your defense lawyer is a complete moron or the state you're in has a specific law against it, having an extra reload is not going to be an issue, unless you walk upto the guy you shot in self defenseand just empty the magazine into him after he's no longer a threat. Your defense attorney should be able to throw out any information about the weapon you used except the fact that it was either posessed legally or not at the time. That is all that is relevant. In a civil case, maybe it can make a difference, but many places are wising up and prohibit civil cases if you have been found not guilty of the murder case. As always, you may want to consult a practicing attorney in your area to make absolutely sure what applies and does not apply to you.

If you're going to carry a firearm, do not do a halfass job of it, you might as well train for malfunctions, and reloads, even if you never need to do one. Chances are you may not need a gun anyway if we're playing the odds. If you do choose to carry one, you might as well cover all the bases just to be as safe as you can be.