Cartridge Cases - The Basics of Firearms and Ammunition

Cartridge Cases are usually made of brass, a composition of 70% copper and 30% zinc.Less commonly,they are made of steel of aluminum,zinc and plastic materials that have been used

Firearms - Guides - Importation & Verification of Firearms - Gun Control Act Definition - Ammunition

A Complete Guide To Ammunition

Back To Basics: Cartridge Cases

Cartridge (firearms) - Wikipedia

Main components of a firearm that leave traces on cartridge cases

Complications of Cartridge Case Life - Shooting Times

The .221 Fireball Cartridge: The Little Round that Can - Shooting Times

What Are the Basic Parts of Ammunition?

Cartridge Cases - The Basics of Firearms and Ammunition

Guide to Air Travel With a Firearm - Guns and Ammo