An active-shooter training exercise ... The plastic pellets they used are 4.6 mm in diameter — slightly larger than a standard BB. "It's a soft, round projectile," he said.

INDIANAPOLIS – An active-shooter training exercise ... The plastic pellets they used are 4.6 mm in diameter – slightly larger than a standard BB. "It's a soft, round projectile," he said.

ALICE training is an 'options ... said the county use 'plastic pellets they used are 4.6 mm in diameter — slightly larger than a standard BB. It's a soft, round projectile,' he said.

INDIANAPOLIS —Indiana teachers were hit with pellets during an active shooter training at a school, the Indiana State Teachers Association said Wednesday. Exact details on when or where this ...