Shotgun shell - Wikipedia

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Do two shells come out of a double barrel shotgun? - Quora

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How to Choose Shotgun Shells and Chokes: 11 Steps (with Pictures)

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Shotgun - Wikipedia

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Can a shotgun with the same barrel fire two different kinds of bullets? - Quora

How do pump shotguns lock their breach? - Quora

File:Shotgun Shell Reloading Tool.jpg - Wikimedia Commons

Double-barreled shotgun - Wikipedia

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Why is a shotgun called a shotgun? Do other guns not shoot? - Quora

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