:cb2: I have four .22 handguns and three are revolvers, so you can guess which one I'm gonna suggest. Automatics are fine, but I have never liked the Rugers, especially after having one. Jammed all the time. (The one I still have is a S&W 2206 which they don't make anymore. Tis a shame. It's a fine gun.) However, since I have gotten old and lazy, I found out something wonderful about single action revolvers. They are a dream to clean. It's so easy to pull out the base pin, pop out the cylinder, and you've taken it down for cleaning. Takes three seconds if you're slow. Once clean, reverse the process, 4 to 5 seconds. Now that Mk. III is gonna be a real pain in the posterior. Easy to take apart. A true horror to get back together. Some folks will tell you it's easy. God bless 'em, they are like Marines—the few, the proud. I tried in vain for hours one night and took it to a friend the next day who finally got it back together. That was the second reason I got rid of it. (The jamming was the first.)
OK, said all that. In conclusion, like you stated, you can shoot anything you want in the Single Six and it will not jam on you—shorts, longs, long rifles, bird shot, and if it has the other cylinder, .22 mags. To me that's a big plus.
The fixed barrel is gonna be accurate (but so will the Mk. III).
After shootin' clean up is a breeze, and doesn't take long at all.
My very biased advise is to go with the Single Six! Wheelguns rule!
And by the way, glad you're gitting rid of that crappie Taurus! Been there, done that, too! Never again.