cz 6.5x55 mm swedish mauser to 6.5x284?

Discussion in 'Gunsmithing' started by cibrmike, Dec 17, 2007.

  1. cibrmike

    cibrmike Member

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    Nov 22, 2007
    Hello I have got a cz american in 6.5x55mm and I was wondering what all I would have to do to change it over to the 6.5x284 just another barrel? and would it be very accurate with just that change?

    thanks for the help
     
  2. Wild_Bill

    Wild_Bill Well-Known Member

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    Sep 15, 2005
    Depends on neck diameter

    It depends on the neck diameter in thr factory barrel if it is the same size as the 6.5x55 chamber and 6.5-284 reamer you can just rechamber the barrel without setting back but if your 6.5-284 reamer has a neck smaler than the factory 6.5x55 chamber than set the barrel back the length of the 284 neck and you are good to go. The 6.5-284 was designed to be able to be rechambered in factory 6.5x55's. But if your barrel is shot out fit a new barrel.

    Cheers Bill
    Australia
     

  3. JRBfish

    JRBfish New Member

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    Jan 3, 2008
    Might want to check the psi on your cz chamber. The 6.5x55 is a 45,000psi round. The 6.5x284 doesn't have a Std. psi. But it has to be 65,000 or over.
     
  4. Wild_Bill

    Wild_Bill Well-Known Member

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    Sep 15, 2005
    pressure

    Don't worry about pressure they are chambered in 270's and 300 Win Mags.

    Cheers Bill
    Australia