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

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Do the police have a database of bullet signatures, or do they need the suspects gun? - Quora

How to search the background of a weapon you found - Quora

What was the first gun to fire self-contained bullets? When and

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Why not require all firearms to be test-fired and the firing pin fingerprint be put in a database for crime investigation? - Quora

How does the Bullet ballistic study work? How are they able to tell this particular bullet was fired only from this particular gun, something like DNA test accuracy? - Quora

Can you make a bullet untraceable? - Quora

Is the bullet of a gun traceable on the bullet itself or the casing? - Quora

Would it be possible to fire guns before sold and scan the bullets and casings into a computer database and then automatically know what gun casings and bullets came from when found