I had the attached images sent to me (I mention this in case some of you might worry that I’m about to collect shothells!).
The headstamp clearly indicates a Gustav Genschow 16-gauge and the rim diameter (0.771”) seems OK for a 16 gauge but the head diameter of 0.643” is way too small, being closer to a 24 gauge. I would have thought that dramatically resizing the case head would have distorted the paper case – which looks undamaged?
Can anyone enlighten me on this low-calorie, extra slim “16-gauge”?