When a rifle is fired, how does the bullet separate from the shell

How the Rifle and Handgun Fire

How to Fire a Gun (with Pictures) - wikiHow

In ballistics, what's the difference between a bullet/round and a shell? - Quora

When you fire a bullet and the shell/casing shoots out, will it be warm/hot? - Quora

Types of Firearm & Firearms' Parts - Whole Earth Education

How do bullets work? - Explain that Stuff

Firearms and Ballistics - ppt video online download

Why Bullets are not Dangerous — Ron Spomer Outdoors

Is the sound of a gun firing actually the bullet breaking the sound barrier? Or is it just the sound of the cartridge exploding in the barrel? - Quora

What would happen if for some reason a rifle round would go off outside of the gun? - Quora

How does offset works and why you must know this before you fire a single shot from your rifle? - Quora

Rifle, History, Types & Uses

The Anatomy of Guns – Gerard Groarke

Why Do Guns Make So Much Noise? » Science ABC