Originally Posted by
mhb
that the headspace will be tighter if the barrel is installed on a different receiver, given the differences in wear, original tolerances, etc. It is also possible you can improve the headspace in any case by selective replacement of the bolt, which is also subject to the variations mentioned above.
If the chamber has been reamed too deeply to headspace with a good receiver and/or bolt, there is no practicable repair.
mhb - Mike
how does one change headspace by installing a double heat treated action on a used barrel?
if it aint broke...fix it till it finally is.