Thread: Headspace gauge/ case head separation

This is how I do it now.
IMO for hunters anything from 0.002" to 0.005" would be fine as you tend to lose cases in the field.
The tape is a good trick.
To measure bump u can get away with a pistol case.
I just use a short length of brass with a hole drilled down the centre to give u a "tube" of brass. It's about 20mm in diameter. I have two. One for 223 and another 30.06. The hole in the brass sits about halfway down the shoulder. Just sit over the nech/shoulder and use dial caliper to measure.

Having said that I'm sure the Hornady comparator would be better and more consistant. I don't neck size any more.

https://youtu.be/htvk1UYOXm8?si=UlPxVmkwpUJeWBT5