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Thread: 30-40 brass

  1. #1
    Boolit Master
    GOPHER SLAYER's Avatar
    Join Date
    Aug 2008
    Cherry Valley ,Ca.

    30-40 brass

    I notice that there is a big interest in buying 30-40 brass for use in the Krag or to reform to something else. I thought I would tell you that are so interested about my experiences with older 30-40 brass. No matter how carefully I annealed the cases many of them split when I tried to reform them. I had very poor luck with brass marked REM-UMC. I don't know when they quit using that head stamp but most of them split. I don't bother with them anymore. I was reforming them to 40-60 Maynard. Before buying new 30-40 brass I have reformed 303-british with nary a split. My point being, If you want to obtain 30-40 brass, buy it new. Much of the brass people have squirreled away is decades old and it is still just once fired.

  2. #2
    Boolit Master
    Join Date
    Apr 2006
    East TN
    I appreciate GS's recommendation to buy new brass for the original caliber as well as for reforming duties. On the down side, I have been looking for a source for new 30/40 brass for a while and nothing has shown up. I hope that at some time Winchester will get back into the components market, or Hornady will expand their offerings, or any other source. It seems that Krag brass is harder to locate than 375 Winchester, if that is possible.

  3. #3
    Boolit Master

    Kraschenbirn's Avatar
    Join Date
    Dec 2006
    East Central IL
    Graf's has their 'house-brand' 30-40 in stock - I seem to recall reading somewhere that it's manufactured by PPU.

    "I'm not often right but I've never been wrong."

    Jimmy Buffett
    "Scarlet Begonias"

  4. #4
    Boolit Master madsenshooter's Avatar
    Join Date
    Jan 2006
    Upper Appalachia, SE Ohio
    I've been converting PRVI .303 British blanks to 30-40. An old RCBS file trim die and a hacksaw makes short work of the crimp, and pushes the shoulder back. This is better than firing the blanks first, as some of the necks split, following the crease of the crimp. The blank cases aren't annealed, so that's something you need to do also. The blank powder becomes booster for some of my WC860 loads.
    "If people let the government decide what foods they eat and what medicines they take, their bodies will soon be in as sorry a state as are the souls of those who live under tyranny."

    -Thomas Jefferson

  5. #5
    Boolit Master
    Join Date
    May 2016
    Denmark (a greasy little spot in Scandinavia)
    With a minimum of lathe worh 7x65R Brenneke can be converted.
    @ .02" on the rim and .01" on the base.
    In a slightly roomy chamber they should fit right in.

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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