I use a micrometer with the Sinclair bullet comparator #1 & #2 on a base stand very similar to the one in Larry Willis's photo below
I couldn't agree more if you are reloading for one gun and the ammo won't be used in other guns. That is the best way to do it. Any way you measure it is fine.Excessive chamber clearance is what causes headspace separation. Why guess at reloading? Measure your chamber clearance at the shoulder, and make the best handloads possible.
- Innovative