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Thread: Fitting Gas Check - what size?

  1. #1
    Boolit Master Bad Ass Wallace's Avatar
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    May 2005
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    Australia
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    1,644

    Fitting Gas Check - what size?

    The main sizes that I cast for are 270, 7mm, 30.06, 303 and 8mm.

    Supply shortages in the present reloading market, made me compromise on the gas check sizes. Firstly I size .303 boolits using an 0.316" die and I found that a 32cal (or 8mm) crimped on much firmer than a 30 cal check.

    Similarly a 7mm check fits a 270 boolit much firmer when sized to 0.278". Still use 30cal for 30.06 when sizing to 0.310".

    270 cast boolit with 7mm check fitted

    Hold Still Varmint; while I plugs Yer!

  2. #2
    Boolit Master
    Dragonheart's Avatar
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    Jan 2012
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    Katy, Texas
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    2,698
    My question would be the end results. Are your GC bases completely flat and perpendicular? If so, you are good to go, but if not?

  3. #3
    Boolit Grand Master

    Winger Ed.'s Avatar
    Join Date
    May 2007
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    Just outside Gun Barrel City, Texas
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    6,132
    You might want to check around.
    Somebody up & down here makes & sells the tool to make your own.
    Never ask old people how they are doing.
    Because they'll tell ya, and you really don't want to know.


    In school: We learn lessons, and are given tests.
    In life: We are given tests, and learn lessons.

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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