The headspace gauges I am familiar with are male and precision ground (go/no go) style, I guess that is kind of like the chamber method in my video but measuring in some unit you move the dies to verses a given position.?
Oh, looking closer it looks like it has “go/no go” so it’s like a casegauge but has units on it vs the “minimum” ledge and maximum face, of a regular rifle casegauge. I can see that working, slower but you don’t have to go by feel, “is it below one surface but above the other”.
View attachment 1110565
Rather, thread on a cap that reads in some unit when it bottoms out on the case.?