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 do shotgun shells have brass or steel encasing the base while the rest of the shell is composed of paper or plastic? Is it necessary? - Quora

Why do shotgun slugs have a wad instead of being just a bullet with a casing and slightly larger slug? - Quora

What is the point of having shotgun slugs as opposed to bullets? - Quora

Will a shotgun shell explode when dropped? - Quora

What shotgun shells do the police use? - Quora

What is the point of having shotgun slugs as opposed to bullets? - Quora

What were shotgun cartridges made of before plastic existed? - Quora

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

Why are shotgun shells made of plastic? - Quora

Are there rifles and pistols that use the same ammunition? - Quora

Is there an FMJ load for a shotgun slug or buckshot? - Quora

Did the Civil War era (and earlier) double barrel shotguns use shells? If not, how were they loaded? - 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

What is a slug gun? - Quora

What is a bottom metal in a gun? - Quora