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Thread: Neck Up .308 Win to 7.7 Japanese

  1. #21
    Boolit Master
    Join Date
    Jul 2013
    Location
    Florida
    Posts
    843
    8x57 is the way to go for an Arisaka but there isn't a lot to be found as range brass. I'll even use berdan primed 8x57 brass since I've two brcks of berdan primers. 30-06 is still common enough but a bit more work reworking it.

  2. #22
    Boolit Grand Master

    Join Date
    Apr 2008
    Location
    Phoenix, Arizona
    Posts
    6,213
    I also use 8X57 brass to make 7.7X58. You can not even tell you are resizing the case as there are no special operations to do. The 7X57 has a longer neck and shorter body than the 8X57 so if one wants use this brass for making 7.7X58 a false shoulder will have to be made.

  3. #23
    Boolit Master
    Join Date
    Mar 2005
    Posts
    4,612
    In my area 8X57 brass is not commonly found in large quantities.
    Since I have a number of 8X57 rifles I leave 8X57 brass as is for those rifles.

    Large quantities of 30-06 commercial, 30-06 military and .270 are easy to find and are somewhere between free and very cheap.

    I make most of my brass out of 30-06 military if I can since it has no caliber marking.
    Next I will use .270 brass since I do not own a .270.

    I have to cut off and anneal both .30-06 and .270 but that is little problem since the brass is very easy to obtain.
    Last edited by EDG; 10-05-2016 at 04:59 PM.
    EDG

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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