Why don't shotgun slugs and shot use full metal jackets and why don't other guns use plastic casings? I believe shotgun shells were originally full metal. - Quora

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Do you save your brass casings and spent shells after you shoot? - Quora

Why don't shotgun slugs and shot use full metal jackets and why don't other guns use plastic casings? I believe shotgun shells were originally full metal. - Quora

Why are shotgun shells made out of plastic while rifle shells are made of metal? - Quora

Do plastic firearms really have no metal bits in them? - Quora

Why don't they make modern pointed ammo that is otherwise like a minie ball but smaller, to get more expansion? - Quora

Would an M3 'grease gun be good for home defense? - Quora

Can slugs be fired from any shotgun? - Quora

What shotgun shells do the police use? - Quora

How are total metal jackets used differently from full metal jackets? - Quora

Is there a handgun that shoots shotgun shells? If there was such a thing, how effective would it be? - Quora

Why is there a limit to how many shotgun shells a shotgun can hold in the US? - Quora

Can't real guns be made of plastic which can go undetected during security checks? - Quora

Can you get a Full metal jacket bullet for a .22? - Quora