Sniper rounds go right through body armor.
And the fun fact that everyone forgets about that shootout. Despite 650+ rounds fired by the bad guys through dreaded assault rifles, they wounded something like 18, and non of them died.
So much for the most lethal weapon imaginable.
Meanwhile, Senior Airman Andrew P. Brown, age 25, with the 92nd Air Force Security Police Squadron, was patrolling the base’s housing areas on a bicycle when he received an emergency call on his two-way radio. He pedaled a quarter-mile to the scene and, while still some 70 yards away, spotted Mellberg shooting at scores of panic-stricken people in the parking lot.
He ditched his bicycle and ordered the gunman to drop his weapon. When Mellberg turned and shot at him, Brown dropped into a combat crouch and returned fire with his 9mm Beretta M9 semiautomatic pistol. He fired four rounds at Mellberg; two missed, one hit him in the shoulder and one struck him between the eyes, instantly ending his homicidal rampage. The drum magazine in Mellberg’s MAK-90 still held 19 rounds of ammunition.”
http://murderpedia.org/male.M/m/mellberg-dean.htm
LAPD didn’t have a weapon overmatch problem, they had a settle down and aim at the head problem.