Shotgun shell - Wikipedia
File:Shotgun Shells 12-70 Gauge CC BY-SA 4.0 by Grasyl Mk.2*.jpg
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Can a shotgun with the same barrel fire two different kinds of bullets? - Quora
File:Shotgun Shell Reloading Tool.jpg - Wikimedia Commons
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What would be the effect of creating extra long shotgun shells for single-shot shotguns (i.e., single/double barreled shotguns)? Would a significantly larger amount of powder increase effectiveness in certain areas? - Quora
When were plastic shotgun shells made available? - Quora
New Buckshot Choke Northwest Firearms