Here is a video review looking at vintage HS pistols and there differences as they relate to being used as a host for a silencer.
https://youtu.be/eYWo3ZVRH0k
Vintage High Standard 22 Autos as suppressor host VIDEO
Re: Vintage High Standard 22 Autos as suppressor host VIDEO
Interesting vid, be nice if you'd pulled off a couple rounds, I wanted to hear that can; way back in the day a class lll and mfg'er I knew and did business with had a Hi-Standard with an attached can he'd built, it was really quiet, nothing but a click