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List of Corrosive primed USGI ammo


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Old 11-12-2015, 12:12 AM   #1
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Default List of Corrosive primed USGI ammo

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")


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