What size is my barrel?

Tactical, combat, military, law enforcement and home defense use of a Remington 870 shotgun.
Post Reply
New Shotgunner
Posts: 12
Joined: Wed Aug 24, 2016 5:21 pm

What size is my barrel?

Post by Bill_1202 » Thu Aug 25, 2016 11:07 pm

I have an 870 tactical express magnum. How can I tell what size my barrel is? 18" or 18.5"? What points do I measure? I want to get the Remington +2 Mag Extension but that don't want it to protrude beyond my barrel. I'm told it won't if my barrel is an 18" barrel?

Posts: 3
Joined: Sun Aug 21, 2016 1:28 am

Re: What size is my barrel?

Post by BigMike67 » Sun Aug 28, 2016 12:37 am

from what i understand you put a small tape measure inside the barrel and run it down to where you hit the bolt.... i measured from the front of the ejetion port and came within a quarter of an inch ..

User avatar
Elite Shotgunner
Posts: 3022
Joined: Fri Dec 28, 2012 8:04 am
Location: The Inland Northwest

Re: What size is my barrel?

Post by Synchronizor » Sun Sep 04, 2016 10:15 pm

The legal definition of shotgun barrel length is the distance from the closed breechface to the muzzle (or the forward end of any permanently-attached muzzle device). Shooters and gun manufacturers define it pretty much the same way, though sometimes fixed muzzle devices are ignored, or removable ones (like extended choke tubes) are included. For plain barrels though, it's pretty straightforward. Close the action (unloaded, of course), insert a dowel or rod, mark, remove, and measure. A sufficiently-thin tape measure or ruler works, too. You can also measure the barrel by taking it off the gun, and running a tape measure from the back of the chamber to the muzzle:

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest