What are the components of a firearms cartridge and what happens to them when a gun is fired? - Quora

Do guns actually smoke after being fired? If so, which ones, and

Does every gun's bullet have unique number/mark printed over it

In movies do they actually fire the gun? - Quora

What is caseless ammunition? - Quora

Projectiles AND Cartridges - Forensic's blog

How does a gun work? - Quora

How many bullets are there in a machine gun? - Quora

Why doesn't the whole bullet come out of a gun? - Quora

Why does a bullet have a tapering end? - Quora

Is this bullet safe to keep around? - Quora