Shoulder Bump Gauge Question

[mtnlvr]

TR1
Can you explain what you mean in the last part of your post "get caliper between the ejector and extractor flows".
And are you saying that the Sinclair Gauge will be more accurate because it uses the shoulder angle?

I would say that the Sinclair gauge would hold its size better since it's indexing on a chamfer. That larger bearing surface will hold up longer than the edge of a hole. Not that it going to wear fast, but I suppose if you measure a lot of steel and are constantly rotating the case 5o get it to settle, we can occur. So with the Sinclair, it has a better chance of measure a headspace gauge over time without drifting.