For me there is measuring the chamber length in thousandth, for everyone else there is go-gage length, no go-gage length and there is field reject length; that is three lengths out of 9 possibilities.
Again, I have a 30/06 chamber that is .016" longer than a minimum length/full length sized, factory over the counter case when measured from the shoulder of the chamber to the bolt face. That is a lot of clearance, the rifle is not rare, the experts blame the problem on one smith. So? Rather than act like a school child I figured 'what it was' they did not understand. He was better off without them.
F. Guffey