On some models, the marks left on bullets are so similar, that all a ballistic test can tell you is the caliber and generic model, such as “it was fired from a 9mm Glock”.
I recall one case where several officers were firing during an altercation. Ballistics could not determine which gun the fatal bullet came from.
“I recall one case where several officers were firing during an altercation. Ballistics could not determine which gun the fatal bullet came from. “
Couldn’t tell, or didn’t want to know?