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 Post subject: measuring and cutting a shotgun barrel ?
PostPosted: Sun May 10, 2009 6:05 pm 
Field Grade

Joined: Sat Apr 04, 2009 10:07 pm
Posts: 27
Location: Michigan
where do I find the proper way to measure a shotgun barrel. So, it can be cut too the 18" min. I've heard too my opinons and need the legal and correct way!

Gonna build a house gun!

Thanks .........Tim


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 Post subject: Re: measuring and cutting a shotgun barrel ?
PostPosted: Sun May 10, 2009 6:27 pm 
Tournament Grade

Joined: Wed Aug 22, 2007 9:09 pm
Posts: 270
From what I understand is that the barrel length is measured with the action closed and drop a dowel rod or something down there until it hist the face of the bolt and make a mark and measure it.

But I don't know how this would work for cutting it shorter as it would be hard to measure.

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 Post subject: Re: measuring and cutting a shotgun barrel ?
PostPosted: Sun May 10, 2009 9:01 pm 
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Go buy a 36" dowel at the hardware store.

With an empty chamber, drop the dowel down your barrel.

Mark the dowel.

Remove the dowel and measure 18.25" up from the end you dropped down the barrel.

Mark the dowel.

Measure the distance between the two marks.

That is the amount you may safely cut off your barrel.

My humble advice would be NOT to cut the barrel any shorter than 18.25". Invariably, the muzzle end will need some cleanup, and you'l lose a a bit there. 18.2" is just as legal as 18.0", and no one will ever know the difference. 17.9999" will get you upto a ten year stay at Club Fed, and up to $250,000 in fines.


Edit for a bit more emphasis. :wink:

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 Post subject: Re: measuring and cutting a shotgun barrel ?
PostPosted: Sun May 10, 2009 9:08 pm 
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Joined: Mon Apr 14, 2008 7:36 pm
Posts: 109
Location: ct
Good advice.... :)


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 Post subject: Re: measuring and cutting a shotgun barrel ?
PostPosted: Sun May 10, 2009 9:14 pm 
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Joined: Tue Mar 03, 2009 11:15 pm
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Location: Big Country, Tx
as a thought you may want to check the over all length also. there is a min. there also. big diff in autos, pumps, and double barrels caused by the length of the receiver. I might be wrong but I think that length is 26 in.

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 Post subject: Re: measuring and cutting a shotgun barrel ?
PostPosted: Sun May 10, 2009 9:41 pm 
Field Grade

Joined: Sat Apr 04, 2009 10:07 pm
Posts: 27
Location: Michigan
Thanks everyone!
I knew it was something like that,but needed a good refesher !
I was going to cut it at least 18.5" ,just incase I had a bad cut.

Thanks again

Tim


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 Post subject: Re: measuring and cutting a shotgun barrel ?
PostPosted: Sun May 10, 2009 10:55 pm 
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Location: Bozeman Mt
Quote:
as a thought you may want to check the over all length also. there is a min. there also. big diff in autos, pumps, and double barrels caused by the length of the receiver. I might be wrong but I think that length is 26 in.

with a legal length barrel, about the only way that you are going to drop under the 26" OAL is with a break action with a pistol grip only. By the time you put even a 12" stock behind an 18" barrel, you are already a couple of inches over the limit. Add a couple inches of receiver in there, and the OAL is really a non issue.

Even a 20" barrel isn't really going to be a problem, and that will allow you an extra shell if you decide to get a magazine extension in the future.


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 Post subject: Re: measuring and cutting a shotgun barrel ?
PostPosted: Mon May 11, 2009 10:57 am 
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Location: Toledo, OH
I used this writeup when cutting down an old Stevens. Worked nicely.

http://xavierthoughts.blogspot.com/2005 ... nches.html

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 Post subject: Re: measuring and cutting a shotgun barrel ?
PostPosted: Mon May 11, 2009 6:22 pm 
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Joined: Tue Nov 11, 2003 4:39 pm
Posts: 92
Cut the barrel to 18.75 inches. If you ever go to Canada with it, you will be legal. 18.5" is the minimum barrel length there.

"Non-restricted firearms include:
* semi-automatic rifles and shotguns with barrels that are at least 470 mm (18.5 inches) long, and do not otherwise fall into a restricted or prohibited category"

When you take a hacksaw to your shotgun, you need to be aware of this paragraph:

"Prohibited firearms include:
* firearms adapted from rifles or shotguns by sawing, cutting or any other alteration, that, when adapted in this way, are less than 660 mm (26 inches) long or have a barrel that is less than 457 mm (18.5 inches) long"

http://www.cbsa-asfc.gc.ca/publications/pub/bsf5044-eng.html

Now, I've seen 18 inches mentioned elsewhere, but this site is the real deal (Canadian Border Services) and I would rather err on the side of "a little too long and sorry for the trouble sir" than "a hair too short and this way to your jail cell".

John Davies
Spokane WA


Last edited by John E Davies on Tue May 12, 2009 9:29 am, edited 2 times in total.

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 Post subject: Re: measuring and cutting a shotgun barrel ?
PostPosted: Mon May 11, 2009 9:18 pm 
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HOW TO MEASURE A SHOTGUN FOR LEGAL MINIMUM LENGTH

27 CFR 479.11

"For purposes of this definition, the length of the barrel having an integral chamber(s) on a shotgun or rifle shall be determined by measuring the distance between the muzzle and the face of
the bolt, breech, or breech block when closed and when the shotgun or rifle is cocked. The overall length of a weapon made from a shotgun or rifle is the distance between the extreme ends of the weapon measured along a line parallel to the center line of the bore."

http://edocket.access.gpo.gov/cfr_2006/ ... 479.11.htm


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 Post subject: Re: measuring and cutting a shotgun barrel ?
PostPosted: Tue May 12, 2009 12:17 am 
Field Grade

Joined: Sat Apr 04, 2009 10:07 pm
Posts: 27
Location: Michigan
excellent info !
BTW...I'm keeping a full stock on it, so I'll be way over 26"

Thanks again!

Tim


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