"That I am." She nodded, pigtails swinging. "When I’m done, I will tell you: the propellant, the primer, the percentage of nickel and copper in the brass, whether or not all three rounds were fired from the same weapon, which you assume," she snapped on gloves, "but I can prove or disprove. I will tell you who manufactured the ammo, the batch number, and perhaps where it was sold. I will also, with some degree of accuracy, tell you if it was fired from a lever action, a bolt action, a semi-automatic, or an automatic weapon." Tony watched as she wove about the lab, gesturing and slowly getting loud as she went. "However, there is no way in hell I can tell you which of the 87 different .308 models fired those rounds!"