The FBI lab reports, obtained by the Associated Press from someone not involved in the criminal case, allow for both possibilities.
Investigators recovered .30-caliber bullets from a survivor, a Blackwater truck, and around Baghdad’s Nisoor Square. Scientists could not determine whether those bullets came from .30-caliber Blackwater machine guns.
The AK-47 rifles favored by many Iraqi insurgents also fire .30-caliber bullets.
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This story is a little old, but I wanted to bring it up again because I would like some clarity on the issue from any law enforcement folks or even the FBI. How the hell does a FBI lab not know what kind of bullet was used? Ballistics forensics is a science, and there are numerous ways to tell what kind of bullets these are, and what kind of rifle they came from. And it looks like they had plenty of sources for those bullets, so what gives?
It is also important to note that DoS required that all weapons used by Blackwater, were strictly regulated by DoS. That means weapons used by BW fired either the 5.56 mm or the NATO 7.62 x 51 bullets. Using weapons that fire the Russian 7.62 x 39 or 7.62 x 54 round was prohibited, and those are the rounds used in insurgent weapons like the AK-47, Dragunov sniper rifle or PKM machine gun.
