Buy a barrel from any reputable manufacturer and the headspace is already set. OF COURSE it'll be set if you buy a barrel and matching bolt. However, if you just buy a barrel and bolt that doesn't proclaim that it's "matched", even from the same manufacturer, you won't have any different setup than if you bought from different manufacturers.
Suppose the headspace isn't correct?? How would you go about correcting it? Inquiring minds want to know!!
