HOLLYWOOD, FLORIDA - OCTOBER 25: Several .223 caliber rounds are shown near a Bushmaster XM-15 October 25, 2002 in Hollywood, Florida. They are similar to the ones that were being used by the sniper during a killing spree near Washington, D.C. Famous for its use in the military's M-16 rifle, the .223-caliber round is known for causing extensive tissue damage. (Photo by Joe Raedle/Getty Images)
