I am soooo excited........

Discussion in 'Ammunition & Reloading' started by Anna_Purna, Jun 19, 2013.

  1. Anna_Purna

    Anna_Purna New Member

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    For the first time ever in attempting to resize some 270 Win brass down to 25.06 Rem brass, and they all went perfectly! No crumpling, or anything from the lube. Now I just need to find that dang lathe thinghy for trimming off the extra length. Just thought I'd gloat over my success. :cool:
     
  2. nitestalker

    nitestalker New Member

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    Anna you need a case trimmer or trim die. The real crucial point in sizing down is not just trim length. You will need a neck ID reamer for a .257 caliber bullet. The excesses metal in the neck will create a very high pressure peak. When sizing down ream the ID. When trimming length in fired brass you turn the OD. The neck does not increase in length without uneven flow in the neck OD.:)
     

  3. Rick1967

    Rick1967 Well-Known Member

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    Very nice. I have gone the other way. I have used 270 to make 8mm mauser. I had to expand it in several passes to keep from splitting the cases. When I trimmed them to length I used a chamfer and deburing tool. In wasn't made to shorten much. So I put the brass in the chuck of my cordless drill. It took them down pretty quick. Mine looks like this.
     

    Attached Files:

  4. Anna_Purna

    Anna_Purna New Member

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    Thanks for the tips Terry. With all this studying I have been doing of late has made me forget about everything my dad taught me. I have the very same thing Rick just posted a picture of. Is that the neck ID reamer you speak of?

    And thanks Rick. I am now considering using 30.06 to make into 25.06. With a 270 die in between. Anyone have tips?
     
  5. nitestalker

    nitestalker New Member

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    Before forming brass always anneal the necks. This will allow a more even brass flow and resist the expander ball from stretching the necks.:)
     
  6. nitestalker

    nitestalker New Member

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    Anna that is a chamfer and deburring tool. Those are only used to remove burrs from the OD and ID after trimming. The neck ID reamer fits in a case trimmer and reduces the ID of the neck to the proper reformed size. In your case a .257 reamer will be needed. During reloading as you know the expander ball will stretch and thicken the neck. In this case the neck is trimmed on the OD with an adjustable neck turning device on a case trimmer. In order to test for neck thickness in a fired case the bullet should drop freely through the neck. This is done before the case neck is re-sized. :)
     
  7. nitestalker

    nitestalker New Member

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    So far as sizing down 06' brass to 25-06 using the .270 die is OK. But may not be necessary. The key to this is to anneal the 06' brass and be aware the shoulder is not properly formed and the neck ID is too thick as is the OAL. The case must then be fireformed in a 25-06 chamber with a mild load to form the 25-06 shoulder angle. Small charges of pistol powder topped with corn meal can produce an even shoulder. THe necks are plugged with wax. Keep the barrel clear.:)
     
  8. therewolf

    therewolf New Member

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    That's why I'm clinging on to every last 30.06 cartridge

    I can glom on to. They are a starter shell for sooo many

    calibers.
     
  9. Anna_Purna

    Anna_Purna New Member

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    Sounds too complicated. :(

    And thanks for the info :)
     
  10. nitestalker

    nitestalker New Member

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    You can short cut case forming. The problem is ruptured brass scoring chambers. Head space problems resulting from improper shoulder forming. This can cause blown primers and damaged bolt faces. :eek:
     
  11. therewolf

    therewolf New Member

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    Corn meal. You learn something new every day.:)
     
  12. MattShlock

    MattShlock New Member

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    Congrats Anna! Forster(sp?) is it makes the lathe thingy with collets to do some serious hand cranking, length trimming, dynamism! I have a couplofem at home.
     
  13. Anna_Purna

    Anna_Purna New Member

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    Thank you MattS. I have an RCBS lath 'thinghy' with collets mounted on a board that I have just pulled out of a box in storage and just need to get at it. I do things in stages, and am now resizing (neck) all my 30.06's. In a few days I will be back to the 270's to 25.06's, and begin trimming them down to size. :D