I've had 8 over the last 51 years, and still own 4 of them. I think that the Single Six has always been one of the very best gun values available to us.
I've had this rare 9 1/2" "Star" model since 1973. The "Star" models were furnished with a .22 LR cylinder only. This one was campaigned hard in IHMSA .22 matches for years, and used to win many matches and a couple of state championships. I hunted squirrels and taught my wife how to shoot with it.
Its been shot so much, I wore out 2 Ruger rear sights, clicking back & forth for the various distances. Its now wearing a Bowen Target rear, and is on its third trigger job/rebuild. A few years ago, I looked at the old warrior with its nicks and dings, and had Gordon Logan dress it up by polishing and bead blasting it, and had Ruger fit an auxiliary .22 Mag. cylinder. Then I fitted a set of Lett buffalo horn grips. It still shoots about as well as it ever did, and won't be for sale in my lifetime:
Gordon Logan also dressed up this 5 1/2" convertible, and crafted a custom scope base. This one usually wears the .22 Magnum cylinder:
Several years ago, Ruger made a special limited run (for TALO or Lipseys, I forget which) of 4 5/8" stainless convertibles. I bought 2, thinking I would keep 1, sell the other. They were equally "Best", so both continue to stay here. One is used as a .22 LR, the other as a Magnum. One day I may sell 1 of them, but I'm in no rush: