Cut and crown a shotgun barrel – rifleshooter.com

Cut and crown a shotgun barrel – rifleshooter.com



Domestic shotgun barrels typically range from 18″ to 32″ in length. While the long barrels are great for target shooting or hunting, shorter barrels are often necessary for defensive use. While many pump and semi-automatic shotguns have aftermarket barrels available, sometimes the easiest way to get a short barrel is to cut down the one you have.

In this case, in the middle of the COVID19 pandemic, the demand for defensive shotguns out paced supply and we were able to source some fairly inexpensive guns with 28″ vent rib barrels that needed to be cut down.

The contents of Rifleshooter.com are produced for informational purposes only and should be performed by competent gunsmiths only. Rifleshooter.com and its authors, do not assume any responsibility, directly or indirectly for the safety of the readers attempting to follow any instructions or perform any of the tasks shown, or the use or misuse of any information contained herein, on this website.

Any modifications made to a firearm should be made by a licensed gunsmith. Failure to do so may void warranties and result in an unsafe firearm and may cause injury or death.

Modifications to a firearm may result in personal injury or death, cause the firearm to not function properly, or malfunction, and cause the firearm to become unsafe.

For this project, I ordered the following items from Brownells:

I begin by securing the barrel in a padded Brownells Multi-Vise.

In the United States, non-NFA shotguns have a minimum barrel length of 18″ (measured from the breech-face). Since this barrel has a vent rib, I marked the barrel at the next rib base past 18″, around 19.25″ on this barrel.

You can cut a shotgun barrel with nearly any kind of metal-cutting saw. I prefer to use a vertical band saw.

After the band saw, I like to square up the muzzle on a belt sander. Often I can carefully grind the muzzle end perfectly square. I apply light pressure to prevent overheating the metal.

To face the muzzle completely perpendicular to the axis of the bore, I like to use this piloted muzzle facing tool.

I normally drive the facing tool in a cordless drill by applying light pressure and coating the tool with cutting oil.

After the barrel is trued, a light pass with a round stone and some abrasive cloth finishes it off. You can drill and tap for a new bead or with a vent rib, leave it alone for a super fast-pointing gun!

Aftermath of a busy morning at the shop!





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