50 caliber armor piercing shellNot uranium after all, a sample of the element Iron in the Periodic Table
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![Cartridge Caliber 12,7 x 108 mm with Armour Piercing Incendiary B32 (API) Bullet | Apolo Engineering Ltd. Cartridge Caliber 12,7 x 108 mm with Armour Piercing Incendiary B32 (API) Bullet | Apolo Engineering Ltd.](https://www.apolobg.com/sites/default/files/Cartridge-Caliber-12%2C7-x-108-mm-NOISE_1.png?1350454020)
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