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Thread: Odd sized gc's. Maybe?

  1. 11-14-2011, 04:23 PM #1
    littlejack
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    Odd sized gc's. Maybe?

    Gentlemen:
    I have been gas checking some of the 316299 boolits that I aquired through a trade. There seems to be 2 (two) makes and sizes of gas checks that I swapped for.
    The ones that fit good on the boolits are approximately .286 i.d. and .319 +/- o.d. with a thickness of .017.
    The other checks are about .281 i.d. and .307 o.d. and a thickness of .013.
    Can someone clarify if the smaller checks are for a particular size boolit. I am not using these on my boolits, as they are too small for my needs. If someone is interested in this particular size of gc, I would be interested in swapping for the larger size for my boolits.
    Jack
    Last edited by littlejack; 11-14-2011 at 04:46 PM.
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  2. 11-14-2011, 09:15 PM #2
    Ben
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    Sounds to me like it is all about the thickness of the Check material.
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  3. 11-15-2011, 01:36 AM #3
    littlejack
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    I realize that the latter gc's are of thinner material, but the I.D. dimension is also smaller.
    Jack
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  4. 11-15-2011, 08:13 AM #4
    Ben
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    WHO made the gas checks ?
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  5. 11-15-2011, 06:58 PM #5
    littlejack
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    I do not know.
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  6. 11-15-2011, 09:00 PM #6
    Ben
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    The checks that are .286 i.d. and .319 +/- o.d. with a thickness of .017 clearly are the closest thing to a proper dimensioned gas check for a standard 30 cal. gas check bullet of the 2 different types that you have.

    I have no idea what the other one ( .281 i.d. and .307 o.d.) would fit ?

    Ben
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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