NON-CORROSIVE PRIMERS IN U.S. MILITARY AMMUNITION
STARTED WITH THESE LOTS/DATES
(Reference TM9-1305 - 200 June 1961)
Table III. Styphnate Primed Small-Arms Ammunition Initial Production Lots
If you do not know the lot number, and only have the headstamp:
Assume that all ammunition with the year shown or earlier is CORROSIVE.
Assume that all with headstamp date higher than the year shown is NON-CORROSIVE
and lot data |
||||||||
Notes:
(1) Odd lots assembled with P-4 or styphnate, primers since l947.
(2) Steel cased lots S-22000-22007 also w/styphnate.
Added Notes
(1) All [U.S. military] caliber .30 carbine lots contain azide or styphnate (non-corrosive) primers.
(2) All [U.S. military] 7.62 millimeter and caliber .50 spotter-tracer cartridges contain styphnate (noncorrosive) primers