Quote Originally Posted by Toyoda
Green-measured at just under .002". (.0018would be my guess)

Now that would be a good thing that its tight-that means the shoulder is resting on the machined section(what is this part called??) of the barrel.
That part is the shoulder. Chamber headspace for a rimless bottle neck cartridge is the length from the closed locked breach (bolt face) to the shoulder. If your measurement is correct there is .002" clearance, your good to go and make some noise.

Bill