I like to learn something every day!
Fascinating and thanks. Well-done videos, good delivery --no Uhhhs and Ahhhs and Ummmms. And your fingernails were clean!
I wonder if it would have worked with those Aguila shorty shotshells, LOA slightly less than 1-1/2". Pretty low power, though, maybe not enough oomph to unlock the breech or set the slide back. But might be worth a try.
One of my High School teachers was named Mr. Sjögren, and we pronounced it "show`-gren," corrupted to Mr. Show-a-grin when he wasn't around.
Terry