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Thread: 243 Winchester and 2400

  1. #1
    Boolit Master
    kungfustyle's Avatar
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    243 Winchester and 2400

    there isn't any data on this one but Lyman lists 2400 at 15.5g for a 130g boolit as a starting load for a 308. Being that the 243 is a necked down 308... Does anyone have any experience with 2400 and the 243? I just got a 85g Lyman mold and looking at giving this a go.

  2. #2
    Boolit Master Maven's Avatar
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    I have the Ly. 87r. Loverin mold and use 9.0, 9.5, and 10.0gr. of Unique with it. (Accuracy is VG - E.) Since Unique is faster than #2400, you may want to start at 9.5gr. - 10.0gr., examine both your targets and cases, then slowly work up a load.

  3. #3
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    JonB_in_Glencoe's Avatar
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    a quick search found this thread...I suspect posts #4 and #5 may help you out.
    http://castboolits.gunloads.com/show...shed-load-data


    also btroj had a great comment about his experience with 2400 and rifle.
    http://castboolits.gunloads.com/show...=1#post2318228

  4. #4
    Boolit Master
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    thanks for the help.

  5. #5
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    Plenty of Data in Lyman #1. Start with 11 grains and end below 14 gr with either the Ly 85 gr or the RCBS 95.
    [The Montana Gianni] Front sight and squeeze

  6. #6
    Boolit Master

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    RCBS #1 on pg 51 shows 13.0-15.0 gr with the 243-095-SP and 14.5-16.5 gr with the 243-100-FN.

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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