Quote Originally Posted by thomae
I researched this question and could not find how to properly measure a barrel.
Is there a link where BATFE explains how to measure a barrel?
Sounds like a stupid question, but does one measure from the end of the receiver or from the end of the barrel recessed inside the receiver.
On the other end, if you have a recessed crown, do you measure from the outer or inner edge of the muzzle?

A link to the proper citation would be appreciated.
You measure the BARREL. The portion inside the receiver counts as part of the barrel length, as would any muzzle brake that is pinned or soldered to eliminate quick removal. Threaded tight is not permanent!
The Part of the receiver that holds the bolt and trigger dose not count as barrel length. It dose count as total length of the gun, as will the stock when installed.