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The pre-war headstamp has the 1- or 2-letter code for the brass supplier of the cartridge case at 6 o'clock, the 2-digit year the cartridge case was produced at 12 o'clock, the lot number of the propellant at 9 o'clock, and the 2-digit year the finished cartridge was assembled at 3 o'clock. The brass suppliers or cartridge manufacturers would ...
A headstamp is the markings on the bottom of a cartridge case designed for a firearm. It usually tells who manufactured the case. It usually tells who manufactured the case. If it is a civilian case it often also tells the caliber: if it is military, the year of manufacture is often added.
Combat shells had either a partial brass case (1" long) with a long paper hull or a full (2.75" long) brass case and no paper hull. Sporting shells (used for trap shooting or hunting) either had a brass base with a full paper hull or a partial brass case (1/2" long) and a long paper hull.
In the 1990s, there were two databases that were formed for storage of pictures of shell casings and bullets in gun crimes. The first was the Drugfire system which was used by the FBI. The second, the IBIS (Integrated Ballistic Identification System) was created by Forensic Technology, Inc. and eventually bought by the Alcohol Tobacco and ...
The MIL-STD-1168 is a set of standard codes used to identify munitions (ammunition, explosives and propellants). It was designed to replace the previous confusing Ammunition Identification Code (AIC) system used by the United States Army Ordnance Department.
Cartridge: The assembly consisting of a bullet, gunpowder, shell casing, and primer. When counting, it is referred to as a "round". Caseless ammunition: A type of small arms ammunition that eliminates the cartridge case that typically holds the primer, propellant, and projectile together as a unit. Casket magazine: A quad stack box magazine.
US 6886284, Lizotte, Todd E., "Firearm microstamping and micromarking insert for stamping a firearm identification code and serial number into cartridge shell casings and projectiles", published 2005-05-03, assigned to Identification Dynamics LLC Belanger, Rene M., Daniel S. Jones, Sylvain Lagace, Michael McLean, and Homero A. Yasquez.
Left to right: smoke, armour-piercing (pre-1955 UK markings), HE (RDX/TNT, strange markings), HE (Amatol, pre-1955 UK markings), smoke (pre-1955 UK markings). Although some shells are shown in the cases, the shell and the case were separate items. Royal Artillery gunners fill 25-pounder shells with propaganda leaflets.