List of Corrosive primed USGI ammo

Discussion in 'Curio & Relic Discussion' started by Saman, Nov 11, 2015.

  1. Saman

    Saman New Member

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    I thought this might be useful.


    U.S. GI Non-Corrosive Primers

    U.S. Military Cartridge Manufacturers, WWII to 2001:
    To Include Caliber, Manufacturer’s Codes and Date Stamp
    – for calibers –
    .30-’06, M1911 .45 ACP, .30 Carbine & 7.62 NATO
    Protocol of Headbase Stamps for U.S. Manufacturers (ALL Calibers):
    Frankford Arsenal:
    Headstamp: FA
    Date Stamp: Last two digits of the year.
    Federal Cartridge Corporation:
    Headstamp: FCC
    Date Stamp: Last two digits of the year – OR if "single digits" are found then for
    example, a 4 would indicate 1944 and a 5 would indicate 1955.
    Lake City Arsenal:
    Headstamp: LC
    Date Stamp: Last two digits of the year.
    Remington Arms:
    Headstamp: RA
    Date Stamp: Last two digits of the year.
    Saint Louis Ordnance Plant:
    Headstamp: SL
    Date Stamp: Last two digits of the year:
    Twin Cities Arsenal:
    Headstamp: TW
    Date Stamp: Last two digits of the year:
    Western Cartridge Corporation:
    Headstamp: WCC
    Date Stamp: Last two digits of the year:
    2
    Winchester Repeating Arms:
    Headstamp: WRA
    Date Stamp: Last two digits of the year:
    Dominion Arsenal (Canada):
    Headstamp: DAQ
    Date Stamp: Last two digits of the year:
    Verdun Arsenal (Canada): All .30-'06 manufactured by Verdun was NON-CORROSIVE!
    Headstamp: VC
    Date Stamp: Last two digits of the year:
    Eu Claire Ordnance Plant: Manufactured exclusively during WWII and all production IS
    CORROSIVE!
    Headstamp: EW
    Date Stamp: Last two digits of the year:
    Denver Ordnance Plant: Manufactured exclusively during WWII and all production IS
    CORROSIVE!
    Headstamp: Den
    Date Stamp: Last two digits of the year:
    Utah Ordnance Plant: Manufactured exclusively during WWII and all production IS
    CORROSIVE!
    Headstamp: U or UT
    Date Stamp: Last two digits of the year:
    Des Moines Ordnance Plant: Manufactured exclusively during WWII and all production IS
    CORROSIVE!
    Headstamp: DM
    Date Stamp: Last two digits of the year:
    NON-CORROSIVE AMMUNITION EXCEPTIONS:
    .30 CARBINE
    Note: All (U.S.) .30 Carbine Ammunition made during WWII and after is NON-CORROSIVE
    (regardless of manufacturer)!
    7.62 mm NATO
    Note: All 7.62 mm NATO manufactured in this country is NON Corrosive – EXCEPT 1956
    "International Match Ammunition" manufactured by Frankford Arsenal (produced at the same
    time as the FA .30-’06, 1956 International Match Ammunition)! This ammunition is usually
    3
    found in Arsenal White Boxes marked "International Match" with FA and the appropriate lot
    number.
    Non-corrosive Primers By Ammunition Lot and Date:
    NOTE: While the decision to go entirely to non-corrosive primers was made in August of
    1949, and was scheduled to be totally implemented by the beginning of 1950, the actual
    changeover took longer than expected. Listed below are the lot numbers and dates of the
    FIRST NON-CORROSIVE military ammunition made in the United States or Canada. If the
    lot numbers are NOT known, the only safe way to discern the corrosive or non-corrosive
    nature of the primers is to consider the following year date stamp as non-corrosive. For
    example, if the first non-corrosive lot number of Frankfort is 4149 produced in October 1951,
    anything manufactured by FA stamped 52 can be considered to be safe to use. I will list the
    ABSOLUTELY safe headstamps at the end of this document.
    The following are the actual dates, calibers, lot numbers and manufacturer’s first noncorrosive
    ammunition. Not ALL ammunition made during THAT year is necessarily noncorrosive:
    FRANKFORD ARSENAL:
    Type: .30-'06 Ball:
    Lot Number: 4149
    Date: October 1951
    First SAFE headstamp: FA 52
    Type: .30-'06 AP
    Lot Number: 887
    Date: October 1951
    First SAFE headstamp: FA 52
    Type: .45 ACP Ball
    Lot Number: 1542
    Date: July 1954
    First SAFE headstamp:
    FA 55
    EXCEPTIONS FOR FRANKFORD ARSENAL:
    1.Any .30-’06 Ball with zinc plated primers with headstamp of FA 47 or later is non-corrosive.
    2.FA .30-’06 "Special Match" headstamped FA 53, FA 54, or FA 56 with red, purple or green
    primer waterproofing is CORROSIVE!
    4
    FEDERAL CARTRIDGE CORPORATION:
    Type: .45 ACP Ball
    Lot Number: 1801
    Date: November 1953
    First SAFE Headstamp: FCC 54
    LAKE CITY ARSENAL:
    Type: .30-'06 Ball
    Lot Number: 13700
    Date: June 1951
    First SAFE Headstamp: LC 52
    Type: .30-'06 AP
    Lot Number: 13158
    Date: April 1952
    First SAFE Headstamp: LC 53
    REMINGTON ARMS CORPORATION:
    Type: .30-'06 Ball
    Lot Number: 33853
    Date: November 1951
    First SAFE Headstamp: RA 52
    Type: .45 ACP Ball
    Lot Number: 5544
    Date: September 1952
    First SAFE Headstamp: RA 53
    ST. LOUIS ORDNANCE PLANT:
    Type: .30-'06 Ball
    Lot Number: 9420
    Date: May 1952
    First SAFE Headstamp: SL 53
    Type: .30-'06 AP
    Lot Number: 9467
    Date: July 1952
    First SAFE Headstamp: SL 53
    TWIN CITIES ARSENAL:
    Type: .30-'06 Ball
    Lot Number: 19362
    Date: December 1950
    First SAFE Headstamp: TW 51
    Type: .30-'06 AP
    Lot Number: 19776
    Date: February 1952
    First SAFE Headstamp: TW 53
    5
    Type: .45 ACP Ball
    Lot Number: 18000
    Date: August 1953
    First SAFE Headstamp: TW 54
    WESTERN CARTRIDGE CORPORATION:
    Type: .30-'06 Ball
    Lot Number: 6428
    Date: June 1951
    First SAFE Headstamp: WCC 52
    Type: .45 ACP Ball
    Lot Number: 6375
    Date: November 1952
    First SAFE Headstamp: WCC 53
    WINCHESTER REPEATING ARMS COMPANY:
    Type: .30-'06 Ball
    Lot Number: 23201
    Date: August 1951
    First SAFE Headstamp: WRA 52
    Type: .30-'06 AP
    Lot Number: 22007
    Date: June 1954
    First SAFE Headstamp: WRA 55
    Type: .45 ACP Ball
    Lot Number: 22198
    Date: November 1951
    First SAFE Headstamp: WRA 52
    WRA EXCEPTIONS/Unusual Lots:
    Type: .45 ACP Ball (Steel Case)
    Lot Numbers 22000 - 22007
    Date: June 1954
    If I recall, these were "mild" steel (reloadable) cases used for the 1955 National Matches, but
    don't hold my feet to the fire on this one! These are not to be confused with the WWII Steel
    Cases to be used (ONLY) in the United States for practice. The WWII stuff usually had purple
    primer sealant, and was produced to conserve brass during the war. All the WWII Steel Case
    .45 ACP IS corrosive.
    CANADIAN PRODUCED .30-’06 BALL AMMUNITION:
    DOMINION ARSENAL (CANADA):
    ALL ammunition manufactured by this maker is non-corrosive. They started producing .30-
    '06 Ball in August 1945.
    6
    VERDUN ARSENAL (CANADA):
    ALL ammunition manufactured by this maker is non-corrosive. They started producing .30-
    '06 Ball in April 1945.
    EAU CLAIRE ORDINANCE PLANT:
    ALL ammunition was produced during WWII and IS Corrosive!
    DENVER ORDNANCE PLANT:
    ALL ammunition was produced during WWII and IS Corrosive!
    UTAH ORDNANCE PLANT:
    ALL ammunition produced during WWII and IS Corrosive!
    Summary of "Safe" Headstamps by Caliber:
    .30-'06 Ball:
    DAQ (Canadian) All non-corrosive
    VC (Canadian) All non-corrosive
    TW 51
    FA 52
    LC 52
    RA 52
    WCC 52
    WRA 52
    SL 53
    .30-'06 AP:
    FA 52
    TW 53
    LC 53
    SL 53
    WRA 55
    .45 ACP Ball
    WRA 52
    WCC 53
    RA 53
    FCC 54
    TW 54
    FA 55
    7
    .30 Carbine:
    All Non-corrosive
    7.62 NATO:
    All Non-corrosive (exception 1956 FA "International Match")