From the accounts of what happened during the Fort Hood tragedy the 5.7 does not sound very anemic to me by any means. Excerpts from the 2009 incident report below.
"Base civilian police Sergeant Kimberly Munley, who had rushed to the scene in her patrol car, encountered Hasan in the area outside the Soldier Readiness Processing Center.[33] Hasan fired at Munley, who exchanged shots with him using her 9mm M9 pistol. Munley's hand was hit by shrapnel when one of Hasan's bullets struck a nearby rain gutter, and then two bullets struck Munley: the first bullet hit her thigh, and the second hit her knee.[20][30] As she began to fall from the first bullet, the second bullet struck her femur, shattering it and knocking her to the ground.
I am venturing to guess it would stop anyone not wearing body armor in a short time . Does the 5.7 shoot magic bullets.... No, but neither does anything else.
"Base civilian police Sergeant Kimberly Munley, who had rushed to the scene in her patrol car, encountered Hasan in the area outside the Soldier Readiness Processing Center.[33] Hasan fired at Munley, who exchanged shots with him using her 9mm M9 pistol. Munley's hand was hit by shrapnel when one of Hasan's bullets struck a nearby rain gutter, and then two bullets struck Munley: the first bullet hit her thigh, and the second hit her knee.[20][30] As she began to fall from the first bullet, the second bullet struck her femur, shattering it and knocking her to the ground.
I am venturing to guess it would stop anyone not wearing body armor in a short time . Does the 5.7 shoot magic bullets.... No, but neither does anything else.