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Shortening Shotgun Barrel

Discussion in 'Maintenance & Gunsmithing' started by ZigZagZeke, Dec 26, 2013.

  1. ZigZagZeke

    ZigZagZeke Eugene Silver Supporter Silver Supporter 2015 Volunteer

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    I have a pretty useless 20 ga single shot shotgun that cost me about $100 NIB. I was going to get rid of it, but then I thought about using it as a "close-in" gun for when I'm calling coyotes. Seems like it would the perfect candidate for shortening to 26" overall length, with an 18" barrel. Of course, I would make sure to leave a half inch or so margin of error on both measurements so as not to incur the wrath of the BATF.

    I can't find where there are any state regulations that would apply to these measurements. Does anybody here know of any?
     
  2. Mark W.

    Mark W. Silverton, OR Bronze Supporter Bronze Supporter

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    The state does not regulate barrel lenght the feds do

    18" for shotguns
    16" for rifles

    Measured from the closed bolt face normally with a dowel down the barrel
     
  3. Sstrand

    Sstrand La Grande OR Well-Known Member

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    Zig
    Make sure to cut it square and break (round over) the rough cut barrel.

    Sheldon
     
  4. ZigZagZeke

    ZigZagZeke Eugene Silver Supporter Silver Supporter 2015 Volunteer

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    I was thinking about using a wheel type pipe cutter, then finishing it with a round stone and jewelers files. The pipe cutter should make a square cut. De-blurring and rounding over shouldn't be difficult. It is already missing the front bead, so I was going to make a new one anyway and silver solder it in.
     
    orygun and (deleted member) like this.
  5. aflineman

    aflineman Both South of Eugene and East of Portland. Active Member

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    Mark the spot for the new front sight before you cut the barrel. Easier to mark it by holding a straight edge from the old sight hole and centered on the rear of the barrel (firing pin location is a good way to check center on the rear of the barrel).
    Pipe cutter works, but can leave a raised ring on the end of the barrel. Normally not in the way, but it can be noticeable.
     
  6. ZigZagZeke

    ZigZagZeke Eugene Silver Supporter Silver Supporter 2015 Volunteer

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    Good suggestion on the new front sight. In a former life I've run hundreds of miles of stainless and mild steel tubing. If you're careful and don't try to cut too deep on each pass you won't get much of a bulge from the cutter. I plan to polish and re-blue the whole gun anyway. The finish on it now is pretty crude.