Re: Closing on the bolt on the Go gage......how tight?
.000" head space isn't always a good thing. Also, most factory brass is under by quite a bit so why would it matter if you went .002 over? There is zero proof that its better, just "good in theory". When you tighten the barrel down you will loose just a bit more, so chambering to 0 will equal less than zero when torqued down. If you reload you adjust your die to bump the shoulder back and that adjustment is based on the depth of your chamber. Too tight in headspace and you might run out of room to bump your shoulder back on your die. Not feeling your bolt when chambering a piece of brass is a must at a comp where running the bolt is important. Thats about .001 clearance, or at least on every gun i have i bump the shoulder back .001 to make everything butter smooth.
Just for reference, a piece of paper is .0035" thick...