Heck, that was over 50 Years ago for me.
Seems like yesterday when I used to go shooting in the Angeles National Forest with my Brother and my Dad.
My Brother had a .22 Ruger with the extra .22 Mag Cylinder. I was pretty proficient with it when I was a Kid.
It was his first Pistol. I think he still owns it.
Ruger has a New .22 revolver,,,
GP 100,,I think.
VERY NICE!