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Thread: Do you FL size new brass

  1. #1

    Do you FL size new brass

    Is it worth FL sizing new PPU brass in 222 through and RCBS die? It going to be for foxing and crows/bunnies out to 300m tops. Will I see a benefit in accuracy as they're potentially more uniform and also more uniform once load development is done and the cases are resized for the first time and loaded again?

  2. #2
    They should already be to SAAMI spec. I just neck size them, check overall length, chamfer and load. You may get some with dented necks which happens in transit/storage with handling so neck sizing as you say, is a way of ensuring consistency between them. I wouldn't bother FL sizing them as it works the brass for no real purpose. I have some new 223 in PPU and that was checked, neck sized, loaded and shot.
    Last edited by ChesterP; 09-11-2016 at 13:11.

  3. #3
    You won't really work harden the brass at this stage if you do FL resize, I personally do simply to ensure they are all fit to chamber, just in case there are a few dents in the necks.

  4. #4
    There is a very sound reason for FL resizing new brass: It helps assure that on the second loading, the results will be closer to those obtained on the first loading. I always do it.~Muir

  5. #5
    Quote Originally Posted by nun_hunter View Post
    Is it worth FL sizing new PPU brass in 222 through and RCBS die? It going to be for foxing and crows/bunnies out to 300m tops. Will I see a benefit in accuracy as they're potentially more uniform and also more uniform once load development is done and the cases are resized for the first time and loaded again?
    I would FL size. Some new brass that I have bought has not been at all consistent. If you FL resize, you will know where you are at from the start.
    A pessimist is an optimist with experience.

  6. #6
    Got to agree, F/L size new brass.

  7. #7
    Quote Originally Posted by Muir View Post
    There is a very sound reason for FL resizing new brass: It helps assure that on the second loading, the results will be closer to those obtained on the first loading. I always do it.~Muir
    This was my main logic as the dies I am using will be slightly different to those that originally formed the brass.

  8. #8

  9. #9
    I only full length resize new brass if it won't chamber in my rifle. Otherwise, I just run a mandrel through the necks to take out any dings. I take Muir's point that new brass and full length resized brass may perform slightly differently.

    Regards

    JCS

  10. #10
    I don't feel the need to FL resize new brass.

    Factory ammunition doesn't get twice sized brass.

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