Case length question.

[stokesrj]

Bob,
If my explanation is misleading I never meant it to be even though I did not explain in detail headspace vs neck length as well as you did. The point I was attempting is that another manufacturer/gunsmith could shorten or lengthen the neck length. Thus creating the bullet crimping that you and I have attempted to explain, like you put it this doesn't affect Headspacing rather defines the trim length to control the neck length. Headspace is a completely different issue as it deals with a datum Dia in the shoulder to a back of case. Because, I have the AA Chamber I would go by what AA defines. My observation sthus far is that none of my brass has made it to the recommended max length (headspace of my brass is defined by my dies, not a trim length)

I understood your post, and it is clear, I was referring to earlier posts in which some were thinking as long as the bolt would close the case length would be in spec.
Bob