I just need to know what is a .008 crush fit? Where are you measuring from?
+.008" headspace measurement. The 30 Herret wildcats are made by pushing the shoulder back on 6.8 brass, so if you don't bump the shoulder back to .000" headspace when forming brass the first time, you get a crush fit. It's not totally necessary, but can help a little in the fireforming process. To reiterate, again, this was only for fireforming loads.
Of course, there is no way to get much of a "crush fit" once the brass has been formed the first time, because the brass comes out of the chamber at .000" headspace, give or take a little.
My only reason for mentioning the crush fit was to show Constructor in our email conversations that dropping the bolt on brass in this chamber would size down brass by at least that amount. Maybe it was doing that on correctly sized brass too, causing headspace issues? That's not something you'd encounter in a bolt gun of course.
