Thanks for the link. Since everything is in short supply this build will take a while.You will need a pair of head space gages. The difference between the go and no-go gauge is about 0.006".
https://www.brownells.com/gunsmith-...26876.aspx?avs|Cartridge_1=CTT_308+Winchester
Wow man! That already sounds like a sweet build. Keep us updated as well. I'm just going with a short action remington 700 chassis with 26" 5-r barrel. I can find a in stock one any where. So I figured I'd give a build a shot.Keep us posted on how it goes, I am currently in the process of building my first as well. I went with a Big Horn Arms origin action with a proof research 6.5CM barrel.