Why are shotgun shells made out of plastic while rifle shells are

By A Mystery Man Writer

Seeing that shotguns use plastic shelled rounds, why don't guns generally use plastic shelled rounds? Would it not be cheaper and just as effective? - Quora

Shotshells: Interpreting the Numbers on the Box

How do shotgun shells work? - Quora

Is a shotgun shell and a bullet the same thing? - Quora

Why don't shotgun plastic shells melt? After all, there is an explosion inside it - Quora

Shotgun shell - Wikipedia

Get to the Point: Bullet Tips Vary Widely, So Choose Wisely - Game & Fish

What is Shotgun pellets made of? - Quora

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

How to Remove Brass From a Spent Shotgun Shell : 6 Steps - Instructables

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

What are the basic Parts of a Shotgun Shell?

Ammunition: Is the all brass shotgun shell still relevant? - Quora