What sort of data could be reliably used to match a bullet or casing found at a crime scene to the gun it was fired from? - Quora

Why do crime scene investigators look for handguns when the

Why do I get a fired cartridge with every new gun I buy? - Quora

How are forensics used by police to match bullets to guns?

Can all bullets be traced back to the exact gun that fired them

How big is the ballistic database for firearms used by law

What sort of data could be reliably used to match a bullet or casing found at a crime scene to the gun it was fired from? - Quora

Is it true that a bullet can be traced to its firearm but not

Can all bullets be traced back to the exact gun that fired them

Which firearm calibers leave such deformed or fragmented bullets