And I thought California, my home State, was nuts. How did they come up with a five round limit?
Most revolvers take at least six rounds and a five round limit could actually be a hazard for someone in a self defense situation if the trigger is pulled using a six shot revolver and nothing happens. It sounds like a bill that was proposed by someone with no knowledge of firearms.

 My real name is Barry and I live at the far northern end of California near the Oregon border. I'm a retired law-enforcement officer, former range master and currently a licensed private investigator.  One of my favorite handguns is my customized Wilson Combat Delta Elite Team. I've had it for many years and have no problems with it at all. I use Double Tap ammo and have been pleased with their products over the years.  Because I tend to use rather hot ammo for my Delta elite, given the unsupported barrel, I recently installed a 24 pound recoil spring from Wilson. It has stopped the battering that I began to feel, softened the recoil and still functions reliably.  I am looking forward to exchanging information with other fans of the 10 mm cartridge.