How to Shoot a Gun - U.S. Marine Corps Rifle Training - USMC Training Video [FULL] | AR15 - How to correctly shoot a gun - Shooting Lessons from the United States Marine Corps - Official Military Firearms Training Video! Fire a gun with precision & accuracy. Learn how to hit your target every time. Fundamentals of Rifle Marksmanship 1999 U.S. Marine Corps - U.S. Marine Corps - Fundamentals of Rifle Marksmanship - This program explains and demonstrates the proper fundamentals of aiming, breath control, and trigger control in rifle markmanship.