Lance Cpl. Dale Dibble, a mortarman with 1st Battalion, 8th Marine Regiment looks through the sight on the M224 60 mm Mortar Lightweight Company Mortar System during a 10-day long 60 mm Mortar Lightweight Company Mortar System course under the direction of the Division Combat Skills Center at Marine Corps Base Camp Lejeune, North Carolina, Aug. 10, 2015. The course began with classroom instruction over the weapons system in which they learned how to boresight, misfire procedures and deflection changes for elevation before the unit moves into live-fire. - Lance Cpl. Dale Dibble, a mortarman with 1st Battalion, 8th Marine Regiment looks through the sight on the M224 60 mm Mortar Lightweight Company Mortar System during a 10-day long 60 mm Mortar Lightweight Company Mortar System course under the direction of the Division Combat Skills Center at Marine Corps Base Camp Lejeune, North Carolina, Aug. 10, 2015. The course began with classroom instruction over the weapons system in which they learned how to boresight, misfire procedures and deflection changes for elevation before the unit moves into live-fire.