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16"/50 caliber Mark 7 gun | by cliff1066™
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16"/50 caliber Mark 7 gun

The Mark 7 gun was originally intended to fire the relatively light 2,240-pound (1,016 kg) Mark 5 armor-piercing shell. However, the shell-handling system for these guns was redesigned to use the "super-heavy" 2,700-pound (1225 kg) APC (Armor Piercing, Capped) Mark 8 shell before any of the Iowa-class battleships were laid down.

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Taken on December 1, 2007