The more I read about all these marks, the less they compute.
Since the round wasn't fired, many of the markings discussed are moot, aren't they?
I wish we could find more information about extractor/ejector marks on unspent cartridges.
Since there are fewer of them, what makes them so identifiable?
The analysis reads (to me) that they test fired
and cycled 3 cartridges through RA's gun.
Isn't that one action or can they test fire a cartridge without cycling it?
Wouldn't test firing interfere with the extractor marks on the cartridge?
Pg 278 Lab Analysis