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Thread: The 8mm and H4831

  1. 09-29-2010, 09:33 PM #1
    autofix4u
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    The 8mm and H4831

    I know that its really to slow for the 8x57, but I have lots of H4831 and use it in the 25-06 and 270. I would like to use it in the 8x57 with a 180-220 grn jacket bullet. The Lee second edtion shows a start of 53 grns for all weights, That dont seem right too me. In the cases that i have with a 170 gn bullet it just touches the base of the bullet with 52 grns, so 53 would be compressed? aboout what would the pressure be ? Safe for a small ring action?
    I have had good results with 4831 in every thing else i have tried it in so I feel 8x57 will be no diffrent.
    Thanks, Josh
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  2. 09-30-2010, 07:35 AM #2
    Larry Gibson
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    I've tested 49 gr (slightly compressed) of old 4831 under the Hornady 220 gr SP in the 8x57. Psi(M43) was in the 38,000 range. Whether or not that is safe in your SR is your decision.

    Larry Gibson
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  3. 09-30-2010, 07:51 AM #3
    Gunnerd
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    Does anyone have a chart that shows the pressure limits of the various milsurp actions/cartridges? That would make a great sticky.
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    The 2nd amendment was never intended to allow private citizens to 'keep and bear arms.' If it had, there would have been wording such as 'the right of the People to keep and bear arms shall not be infringed. -Ken Konecki, July 27, 1992

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  4. 10-04-2010, 01:38 PM #4
    Gunnerd
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    Never mind, LASC has one!
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    The 2nd amendment was never intended to allow private citizens to 'keep and bear arms.' If it had, there would have been wording such as 'the right of the People to keep and bear arms shall not be infringed. -Ken Konecki, July 27, 1992

    John Galt was here.
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  5. 10-06-2010, 02:46 PM #5
    AviatorTroy
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    The load I grew up with in 8x57 is to fill the case up to the bottom of the neck, and use with any 150-180 gr. bullet.
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  6. 10-06-2010, 02:47 PM #6
    AviatorTroy
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    Er, with 4831 of course. H4831 may be different than the old stuff tho.
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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