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New brass procedure

Discussion in 'Handloading and Reloading' started by ricehombre, Nov 17, 2007.

  1. ricehombre

    ricehombre New Member

    Oct 25, 2005
    Just bought new Rem 270 win brass. Do I need to FL size and trim or can I get by with neck sizing for a bolt action rifle? Also planning to use IMR4831 and manuals go 52-57 gr. for 140 bullets. Any suggestions for SST or Accubonds? Thanks
  2. armoredman

    armoredman Elder

    Nov 19, 2003
    proud to be in AZ
    Full length and trim - I have had many brand new brass that were overlong and out of round.
  3. mrawesome22-250

    mrawesome22-250 New Member

    Nov 16, 2007
    With new brass I FL size, trim all to the exact same length, deburr the flash holes, chamfer, deburr, and turn the necks. After fire forming, neck size only. After a few firings they will start to chamber tightly. Some say this is a bad thing. I think it's a good thing.
  4. ReloaderFred

    ReloaderFred Mentor

    Apr 28, 2005
    Oregon Coast
    I treat new brass just like once fired. It goes through the whole process, just to ensure it's all the same. I've got 500 new .45-70 to process right now. The shippers must have used the package for a soccer ball, since there are so many deformed cases in the package. Bulk brass takes a beating in transit.

    The other thing about new brass is it may have been produced on different dies out of the machines. It depends on what the factory is running at the time, since they run different calibers at different times. If they have a big demand for a particular caliber, they may devote more than one production line to that caliber, so they can get it done quicker.

    Hope this helps.


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