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

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

How does forensics match a bullet to a weapon? - Quora

Firearms Module 8 Key Issues: Firearms as Evidence

What sort of data could be reliably used to match a bullet or

How do people identify guns with bullet casings and shot wounds

Do revolvers have ballistics for tracking like a handgun or rifle

Which firearm calibers leave such deformed or fragmented bullets

What happens if the caliber of a bullet does not match the firearm

Why not require all firearms to be test-fired and the firing pin

How does forensics match a bullet to a weapon? - Quora