C’mon Guffey! Don’t give it to us in riddles.....tell us what you are talking about plastigage crushes when you close the bolt. It comes with a chart to read it. Add that to what you get off your comparator....write it down....its s absolute as you can get!"A way?", yes and then there is understanding what is going on when using plastigage.
It is possible, it is not a problem but the ones I have used have a problem turning when the bolt is closed so some kind of a friction devise is necessary. I have 5 very small Starrett inside micrometers that are designed to be installed/fixed on one end and adjustable on the other. It would be easy to modify the micrometer.I've always wanted to make an adjustable headspace gauge.
.its s absolute as you can get!
I was thinking there is a remote chance there are reloaders that that are not members of the choir. I was thinking it would be helpful to understand when a head space gage is used when checking the length of the chamber from the shoulder to the bolt face in the perfect world the head space gage is a snug fit. And I believe it helps to understand the case when full length sized or is minimum length the clearance is included in the head space gage. The clearance for a 30/06 is .005".
If the OP used a fired case when using plastigage there would be little to no clearance. I understand that means nothing to you but if a member is not a member of the choir he would understand the go-gage was not necessary.
And if he developed good habits and learned to measure before and again after he would know the length of the chamber.
And he needs to learn the difference in actions, it is possible to determine if the case stretched and or formed. Stretched is the scary one. I will let you expalin that one.
I don't think that would be a problem with what I am proposing. These wouldn't be adjustable like a micrometer. Effectively it's a fixed gauge that you can adjust to different lengths. I was thinking you could take an existing gauge, drill and tap it along the long axis. Then slice it in the middle. You can add shims in the middle as needed for different lengths.It is possible, it is not a problem but the ones I have used have a problem turning when the bolt is closed so some kind of a friction devise is necessary....snip
Forgive, I have offered to modify go gages to go-to infinity gages, that would be a gage that measured the length of the chamber from the shoulder to the bolt face from go-gage length to infinity; problem, no one has a clue what that would be.I don't think that would be a problem with what I am proposing.
25WSM, it is OK, no one is insisting your learn to measure the length of the chamber, I doubt there is a member on this forum that would hold it against you if you do not know how.I still fail to see the point in knowing exactly what your head space is. I don't give a hoot what length it is as long as it's in the middle somewhere between the go and no-go.
A head space gage will fit inside of a sizing die. There are a few reloaders than can verify a die with a head space gage. Again, it is not necessary to use shims on a gage in a chamber. It helps if the reloader can verify the gage.I've been wondering if the adjustable gauge thing would be handy for setting up your dies. Maybe measure your chamber with the gauge, then take maybe 0.001" worth of shims out of the gauge and use that to setup your dies. I've never tried to see if the head-space gauges will easy fit into a sizing die. Just a thought. Might be pointless.
Yes they did, the problem is with reloaders, they wooo and ahhhhh and try to impress each other. In the beginning I said the Hornady tool was a compactor, reloaders insisted the tool was a head space gager. I knew the case does not have head space because SAAMI does not list case head space. Back to Hornady/Sinclair tool. I said the tool was a compactor because the datum had a radius, again, I make datums, my datus have very sharp edges, the sharp edge makes the datum case unfriendly.Maybe Hornady missed the boat with their measuring system.
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