Barrel Length

[Doug76]

Just how is barrel length measured? From receiver to muzzle, chamber to muzzle, what?

[Helen Keller]

bolt closed, dowel rod down the barrel . measurement ends at muzzle or permanent attached device.

[imanaknut]

With the bolt closed, ATF drops a rod into the barrel. If the 16 disappears, it is legal per the constitution. If the 16 is visible, it is illegal per ATF.

Seriously, measure using a dowel in the bore with the bolt closed. That is the barrel length. If you have a removable muzzle device it must be removed. A fixed muzzle device counts as barrel length.

PS, Welcome to the group !!! :welcome:

[Doug76]

I was thinking it was that, but didn't know for sure. Thanks, and thanks for the welcome. Looks like a fine forum.

[dfariswheel]

How barrel length is measured depends on the type of firearm.

For most rifles, shotguns, and automatic pistols dropping a rod down the barrel with the action closed is correct.
Revolvers are measured from the front face of the cylinder to the muzzle.

[Krupski]

Just how is barrel length measured? From receiver to muzzle, chamber to muzzle, what?

Welcome to Gunsnet! :welcome:

Let me add to the info you've already been given... when you measure a barrel add at least 1/8 to 1/4 inch (or even 1/2 inch) so that you have 16 inches PLUS (like 16-1/2).

If you are a whisker short of 16.000 inches the BATFE will come stomp your kittens and burn your house down. Be on the safe side.