U.S. Marine Corps Sgt. Garald John, combat marksmanship trainer, Headquarters and Support Battalion, Marine Corps Base Camp Pendleton, assesses Marines while they “snap in” at Marine Corps Base Camp Pendleton, California, Oct. 5, 2018. "Snapping in" is the term used to describe practicing dry-firing with an empty weapon before live-firing. - U.S. Marine Corps Sgt. Garald John, combat marksmanship trainer, Headquarters and Support Battalion, Marine Corps Base Camp Pendleton, assesses Marines while they “snap in” at Marine Corps Base Camp Pendleton, California, Oct. 5, 2018. "Snapping in" is the term used to describe practicing dry-firing with an empty weapon before live-firing.

U.S. Marine Corps Staff Sgt. Estefania Patino, a Primary Marksmanship Instructor at Marine Corps Recruit Depot Parris Island, S.C., poses for a photo at Hue City Range July 24, 2018. - U.S. Marine Corps Staff Sgt. Estefania Patino, a Primary Marksmanship Instructor at Marine Corps Recruit Depot Parris Island, S.C., poses for a photo at Hue City Range July 24, 2018.

Marines conducted live-fire ranges where they rehearsed rocket battle drills and fire team attacks. - Lance Cpl. Jonathan Whitfield, a fire team leader with 3rd Battalion, 6th Marine Regiment, 2nd Marine Division engages a target with an M27 Infantry Automatic Rifle during a Tactical Small Unit Leaders Course at Camp Lejeune, N.C., Jan. 16, 2017. Marines conducted live-fire ranges where they rehearsed rocket battle drills and fire team attacks. The Marines used the M72AS 21mm Trainer System, M72 Lightweight Anti-Tank Weapon, AT-4 rocket launcher, M203 grenade launcher, M32 grenade launcher and M27 Infantry Automatic Rifle.

Marines with 2nd Law Enforcement Battalion participated in a Beretta M9 pistol shoot during a weeklong weapon training exercise at Marine Corps Base Camp Lejeune, N.C., August 9, 2016. Marines practiced handling and firing pistols in several unconventional style drills, helping enhance their skills with the weapon. - Marines with 2nd Law Enforcement Battalion participated in a Beretta M9 pistol shoot during a weeklong weapon training exercise at Marine Corps Base Camp Lejeune, N.C., August 9, 2016. Marines practiced handling and firing pistols in several unconventional style drills, helping enhance their skills with the weapon.

An amphibious assault vehicle crewman with Alpha Company, 2nd Assault Amphibian Battalion, loads simulation rounds into a mounted MK-19 40mm grenade launcher during a live-fire gunnery range at Marine Corps Base Camp Lejeune, North Carolina, July 27, 2016. Marines with the battalion spent the day refining their marksmanship skill as individuals and their ability to work as a crew. - An amphibious assault vehicle crewman with Alpha Company, 2nd Assault Amphibian Battalion, loads simulation rounds into a mounted MK-19 40mm grenade launcher during a live-fire gunnery range at Marine Corps Base Camp Lejeune, North Carolina, July 27, 2016. Marines with the battalion spent the day refining their marksmanship skill as individuals and their ability to work as a crew.

Cpl. Zachary Summers, a radio operator with 3rd Radio Battalion, combat glides toward a target shooting his M9 Service Pistol during a Pacific Combat Shooting Match at the Kaneohe Bay Range Training Facility aboard Marine Corps Base Hawaii, March 16, 2016. Teams from different units used various weapons and tactics to achieve the fastest time possible on different courses of fire, while earning points for awards during the competition. Marines from the Marine Corps Combat Shooting Team instructed and gave advice to the Marines participating in the event. - Cpl. Zachary Summers, a radio operator with 3rd Radio Battalion, combat glides toward a target shooting his M9 Service Pistol during a Pacific Combat Shooting Match at the Kaneohe Bay Range Training Facility aboard Marine Corps Base Hawaii, March 16, 2016. Teams from different units used various weapons and tactics to achieve the fastest time possible on different courses of fire, while earning points for awards during the competition. Marines from the Marine Corps Combat Shooting Team instructed and gave advice to the Marines participating in the event.

Lance Cpl. Curtis L. Brown, a rifleman with Company F, 2nd Battalion, 8th Marine Regiment, assaults targets down range during a field exercise at Marine Corps Base Camp Lejeune, N.C., Jan. 28, 2016. The company reinforced infantry fundamentals at all levels, beginning with fire team tactics before advancing to squad-level exercises. - Lance Cpl. Curtis L. Brown, a rifleman with Company F, 2nd Battalion, 8th Marine Regiment, assaults targets down range during a field exercise at Marine Corps Base Camp Lejeune, N.C., Jan. 28, 2016. The company reinforced infantry fundamentals at all levels, beginning with fire team tactics before advancing to squad-level exercises.

A Marine with 3rd Battalion, 6th Marine Regiment, looks a through compass during a 60mm mortar live-fire range at Marine Corps Base Camp Lejeune, N.C., Nov. 19, 2015. Despite heavy rainfall and wind, the Marines completed the mortar shoot in order to retain and refine their skills with the weapons system and prove they could complete a fire mission under any conditions. - A Marine with 3rd Battalion, 6th Marine Regiment, looks a through compass during a 60mm mortar live-fire range at Marine Corps Base Camp Lejeune, N.C., Nov. 19, 2015. Despite heavy rainfall and wind, the Marines completed the mortar shoot in order to retain and refine their skills with the weapons system and prove they could complete a fire mission under any conditions.

Marines set up a Browning M2 .50-caliber machine gun prior to a weapons familiarization range at Marine Corps Base Camp Lejeune, North Carolina, Aug. 27, 2015. More than 100 Marines from Marine Air Support Squadron 1 honed their weapons skills with the M240B machine gun, Browning M2 .50 caliber machine gun and the M1014 combat shotgun. Marines from various military job specialties received hands-on experience that allowed them to improve crucial skills and become well-rounded war fighters. - Marines set up a Browning M2 .50-caliber machine gun prior to a weapons familiarization range at Marine Corps Base Camp Lejeune, North Carolina, Aug. 27, 2015. More than 100 Marines from Marine Air Support Squadron 1 honed their weapons skills with the M240B machine gun, Browning M2 .50 caliber machine gun and the M1014 combat shotgun. Marines from various military job specialties received hands-on experience that allowed them to improve crucial skills and become well-rounded war fighters.

Marines with Support Company, 2nd Combat Engineer Battalion, fire M240B Machine Guns and M2 Browning .50-Caliber Machine Guns at targets of an unknown distance from the turrets of armored Humvees as part of a convoy live-fire range at Fort A.P. Hill, Virginia, Aug. 4, 2015. The company conducted the five vehicle convoy in order to increase their proficiency with the weapons systems and to improve their communication skills. - Marines with Support Company, 2nd Combat Engineer Battalion, fire M240B Machine Guns and M2 Browning .50-Caliber Machine Guns at targets of an unknown distance from the turrets of armored Humvees as part of a convoy live-fire range at Fort A.P. Hill, Virginia, Aug. 4, 2015. The company conducted the five vehicle convoy in order to increase their proficiency with the weapons systems and to improve their communication skills.

U.S. Marine Lance Cpl. Victor CastilloGarcia, left, a field radio operator from Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa, provides security for an MV-22B Osprey at a landing zone in Sierra Del Retin, Spain, May 4, 2015. The Marines landed at the site to conduct range operations with the Spanish Marines, who used the Osprey as part of their battalion’s training exercise. - U.S. Marine Lance Cpl. Victor CastilloGarcia, left, a field radio operator from Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa, provides security for an MV-22B Osprey at a landing zone in Sierra Del Retin, Spain, May 4, 2015. The Marines landed at the site to conduct range operations with the Spanish Marines, who used the Osprey as part of their battalion’s training exercise.

Lance Cpl. Xavier Castro, a rifleman with 1st Battalion, 8th Marine Regiment, fires his M203 rifle-mounted grenade launcher during a M203 qualification aboard Marine Corps Base Camp Lejeune, North Carolina, April 5, 2015. The M203 grenade launcher fires various types of 40 mm ammunition, ranging from high explosive to ground marking rounds. - Lance Cpl. Xavier Castro, a rifleman with 1st Battalion, 8th Marine Regiment, fires his M203 rifle-mounted grenade launcher during a M203 qualification aboard Marine Corps Base Camp Lejeune, North Carolina, April 5, 2015. The M203 grenade launcher fires various types of 40 mm ammunition, ranging from high explosive to ground marking rounds.

Two Marines from 3rd Battalion, 8th Marine Regiment, sight in on their targets during a Designated Marksman Course with the Division Combat Skills Center, April 6-17, 2015, aboard Camp Lejeune, N.C. The Marines learned range calls, wind estimation, and other basics of long range marksmanship. - Two Marines from 3rd Battalion, 8th Marine Regiment, sight in on their targets during a Designated Marksman Course with the Division Combat Skills Center, April 6-17, 2015, aboard Camp Lejeune, N.C. The Marines learned range calls, wind estimation, and other basics of long range marksmanship.