Not in Switzerland but in Portugal.
Not that many shooters only 20, but 20 Lugers nonetheless.
Not 50 meters but only 25.
Not photos but video.
Not .30 but 9 Luger. Edit. There was 1 .30 among the 9s
https://m.youtube.com/watch?hd=1&fea...&v=3DR2vit2eZQ