In 1965 my Pop bought a Ruger Mark I 22 pistol which he never fired. (He bought it during the Watts Riots for the obvious reasons.) It sat in a drawer for decades until I inherited it in 1996. I put a coat of oil on it, fired it once, and it sat for another 15 years. This Saturday I took it to the range and put 200 rounds through it.
Several things about this pistol stand out:
1. It is dead on dog-crazy accurate. It shoots as accurately as I can, and when I shoot well it will give very good groupings. The fixed sights are right on the money.
2. Despite receiving no care whatever until 1996, there is not a hint of corrosion anywhere on the pistol. Ruger used very good materials here, in my opinion.
3. Only one FTE in 200 rounds of Remington. Not terrible for a new gun and I attribute this to wear-in. Also, the gun was not well-lubed IMO. (It is now.)
4. This thing was the toughest firearm to reassemble I have ever seen, heard of, or thought of. In my day I have reassembled the M60 7.62 machine gun, a 50 cal. coaxial machine gun, and many rifles and pistols. They are all cakewalks to reassemble compared to this pistol. I finally think I have it figured out. The manual was utterly incomprehensible about the placement of that infernal little hammer strut pin, but that is, of course, the secret. I imagine reassembly is very easy once the user stumbles on this trick, but it is not an easy trick to figure out.
This You Tube video is very helpful.
Ruger still makes Mark I magazines too. That's a nice example of them standing behind their products long-term.