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Thread: boolit springback after sizing? and sizing die profile guestions

  1. #1
    Boolit Master Oklahoma Rebel's Avatar
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    boolit springback after sizing? and sizing die profile guestions

    I am gonna have someone with a lathe spin a .458 boolit sizer out of a 7/8 bolt that fits my press, any tips, should it be a long, shallow straight angle, convex, or concave? and will there be any springback to compensate for,for instance if the inside diameter is .458 will the boolit come out .4585 or .459?
    An armed man in a citizen.
    An unarmed man is a subject.
    A disarmed man is a slave.

  2. #2
    Boolit Grand Master Char-Gar's Avatar
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    There is such a thing as bullet spring back, but for all practical purposes it is insignificant and varies with the alloy. Trying to compensate is like a dog chasing it tail.
    Disclaimer: The above is not holy writ. It is just my opinion based on my experience and knowledge. Your mileage may vary.

  3. #3
    Boolit Master Oklahoma Rebel's Avatar
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    should the inside of a bullet sizer be a straight angle or a gentle convex kinda like this |)(| of course not that dramatic lol?
    An armed man in a citizen.
    An unarmed man is a subject.
    A disarmed man is a slave.

  4. #4
    Boolit Master
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    I'm guessing you don't have any push through bullet size dies? If you do just have him fallow that profile as best as he can.

    Like the other guys said spring back is a non issue. But I would think the harder the alloy the more chance of spring back. But even then it would be insignificant.

    Motor

  5. #5
    Boolit Master Oklahoma Rebel's Avatar
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    ok thankyou
    An armed man in a citizen.
    An unarmed man is a subject.
    A disarmed man is a slave.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check