Bore out a new barrel

kayak101

February 18, 2011 11:24

I have a Winchester Model 12 that is stamped for 2 3/4" shells only. The barrel was lost long ago. I bought another barrel for it and want to take it to a machine shop/gunsmith to bore it out to accept a 3" shell. Can anyone give me concerns/thoughts on this?

Thanks

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  countryfarmer

  February 18, 2011 11:37

  3" shells may be too long to cycle through the action properly.

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  gandj arms

  February 18, 2011 12:48

  i tried a 3inch barrel; it ok for the 2 3/4 but not the 3in; can not eject them

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  Ned Fall

  February 18, 2011 13:30

  You have to open up the ejection port as well.

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  MIKE WISKEY

  February 19, 2011 04:30

  to eject a FIRED shell you need to lenghten the ejector port (to the front). and install a 3" ejector.

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  wpage

  February 19, 2011 09:49

  Agree with prior. Get a gun sized for it or reload custom 2 3/4" shells for better performance.

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  oneoldsap

  February 19, 2011 13:20

  I concur with the two previous posters ! There are 3" Model 12s out there if you must have a 12 , or just upgrade to a more modern gun designed to do what you want it to !

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  kayak101

  February 28, 2011 05:10

  Thanks for the replies so far everyone, however I was unclear. Sorry. The original barrel was marked as 3". I could not find a 3", so I bought a 2 3/4" and want to have a machine shop/gunsmith drill it to accept an opened 3" shell. More thoughts?

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  MIKE WISKEY

  February 28, 2011 08:41

  what you want done is possible (see above) but you also must match the 'chamber ring' to the new barrel. this is a short piece or steel in front of the bolt that forms the 1st 1/4" of the chamber and must match the rest of the chamber exactly.

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