40mm L60 Cartridge
Bofors/USA/USN 40mm L60 cartridge, inert. This has a plated steel cartridge case. The fuze can be unscrewed from the projectile. The projectile is firmly seated in the case. Millions of these were made during WWII for use in Army AA guns and Navy shipboard gun mountings, including quad mounts. Many Kamakazi aircraft fell to high-explosive rounds from these weapons.