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Thread: Problems re-forming 30-06 brass to 7x57

  1. #21
    Boolit Master
    Join Date
    Oct 2013
    I have converted 30-06 to 8mm mauser, 7.65 mauser and 7mm mauser. Never had any issues w dents, just ran it thru the press real quick. Issue was neck thickness. I managed to find a 8mm inside reamer, but not 7mm. And not had any issues finding 7mm mauser to make it worth the effort of forming brass.

  2. #22
    Boolit Grand Master

    Join Date
    Mar 2013
    Northwest Ohio
    You might try setting the shoulder back first in a separate operation then neck down to 7mm. in a pinch a 308 win die could be set high and get it very close. pushing the shoulder back and vecking down at the same time is moving a lot of metal a lot. annealing may help also.

  3. #23
    Boolit Buddy
    Join Date
    Feb 2006
    too much lube . don't try to size it in one step . work it a little at a time.

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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