This Nosler FAQ from 2013 confused me. Based on the first paragraph, I got myself halfway believing a rifle set back a thread and chambered would meet the SAAMI standard. Called Nosler and they said "Nope. .014" headspace." They're right; proved it today on the rifle I mentioned at the beginning--shuts on a SAAMI-standard no-go gauge.
That said, I think this FAQ could be a little clearer......
