I have one of the old ones. It is equipped with a Weaver scope and tip-off mounts. (
State of the art in the 1970s) Gun belonged to my long time best friend and his widow gave it to me.
As we also hunted together I had many opportunities to fire it before I got to own it! Bill was a very good shot and he took a lot of deer out of the Catskill mountains of NY state with that gun .Most 1 shot 1 kill!
The gun being so small & light and very powerful was his house defense gun. He never had to use it for that purpose but I know it would have done the job.