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Thread: 30-40 Krag to 25 Krag AI

  1. #1
    Boolit Grand Master

    Wayne Smith's Avatar
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    Mar 2005
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    Hampton Roads, Virginia
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    10,599

    30-40 Krag to 25 Krag AI

    I think I have basically perfected the above process. It is as follows:

    1) Procure 30-40 Brass

    2) neck down to 7mm with 7x57 size die with internals removed

    3) Neck down to .25 with the 25 Krag AI 40% die (mine are RCBS, may need to get them from CH4D) with the internals removed.

    4) expand to .25 with the Lyman 25R M die.

    5) Anneal necks

    6) Load with reasonable load (the 25 Krag AI has 2gr. capacity greater than the 257 Roberts AI and 2gr capacity less than the 25-06. I have data for both.)

    7) Fire in 25 Krag AI chamber. You are done. Neck size and have fun.

    Bulberry Barrels has the reamer and made my Encore barrel.
    Wayne the Shrink

    There is no 'right' that requires me to work for you or you to work for me!

  2. #2
    Boolit Buddy
    Join Date
    Oct 2011
    Location
    VA
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    116
    +1 on annealing the necks. As hard as 30-40 brass is to find today, no need to “roll the dice” when fire forming.

  3. #3
    Boolit Grand Master

    Wayne Smith's Avatar
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    Mar 2005
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    Hampton Roads, Virginia
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    I'm stubborn. I fired one without annealing, split the shoulder, and pulled the rest (five) that I had loaded. Gotta anneal next.
    Wayne the Shrink

    There is no 'right' that requires me to work for you or you to work for me!

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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