The holly grail? Close, but not quite. THE holly grail of stainless K-22s is the one and only K-22 Combat Masterpiece. It is a stainless Model 18 that got stamped Model 6x. I forget the last digit. It is owned by a forum member. You did get close. Damn close.

By the way, THE holly grail of S&W .22s is THE .22 Registered Magnum. Its where abouts are unknown.