I am considering changing the barrel on a Savage . The way I would do it is to install a Go in the chamber ( with the bolt closed ) and screw the barrel down snug , against the Go . With the bolt still closed and the Go still in the chamber , I would tighten the nut down .

I would then see if the barrel would close on a variety of factory ammo . If it was too tight , I have a .002" and .004" shim cut from an automotive feeler gauge .

I would sandwich then .002" shim between the bolt head and the Go and re-set the HS . Then check with factory ammo .

Word of caution , use very light pressure when atempting to close the bolt , as in pressure from your pinkey finger .

God bless
Wyr