Setting headspace?

[Rlbol]

http://www.larrywillis.com/headspace.html

Thank you, that is a great web site it explained things very well.
So I ordered some gauges I also planned on ordering a new bolt head from ptg but I was unsure of the ejection port? On a normal right hand 111 is the ejection to the right or left? I have never noticed on the regular 10/111 models?