Mortarmen with 1st Battalion, 8th Marine Regiment practice boresighting with 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 aboard Camp Lejeune, , 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. ( Marine Corps photo by Cpl. Krista James/Released)

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Keywords: 1st, 2nd, 8th, basics, battalion, center, combat, division, marine, marines, mortars, regiment, skills, techniques, training