I'd review or read a few articles by Massad Ayoob(a TFL member).
Mr Ayoob is a legal use of force expert, author & sworn LE officer.
He's been in real use of force trials & knows what firearms, tactics & gear work best for armed citizens/armed professionals.
I would advise not using a SA revolver for regular defense. The fact you may have a AD or be falsely accused of threats or cocking a revolver hammer in a critical incident are great.
You must understand your actions & equipment(weapon ammunition holster training) will all be subject to in depth review by criminal investigators or prosecutors.
To use a cowboy gun or single action revolver in 2013 may be difficult to explain in open court.
I do all my own stunts.