Is every new gun made test fired first and the bullet sent to the FBI to be entered into the ballistics database? Can every new gun be traced back to the original

How do police track bullets? - Quora

If Billy Bob sells a pistol to Bo who turns around and sells it to

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

Is every new gun made test fired first and the bullet sent to the

Why don't they get ballistics for every gun sold? - Quora

Is the bullet of a gun traceable on the bullet itself or the

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

How is ballistics used to trace a gun when all bullets and guns of

How do criminals make guns and bullets untraceable? - Quora

Can ballistics match a bullet to a gun? - Quora