Chuck Mawhinney: The Legendary USMC Sniper Who Hit 16 Enemy in 30 Seconds on a Pitch-Black Night

Photo Credit: MidJourney

In the realm of extraordinary military feats, several service members gain recognition, receiving public praise and awards – some even become the subjects of books and/or movies. Chuck Mawhinney, however, chose the path less traveled. A US Marine Corps sniper who served in Vietnam, he forged an exceptional career for himself and deliberately kept it a secret from his family, friends and his wife.

Mawhinney’s story was revealed by someone else, prompting him to not only validate the account, but inadvertently reshape the public’s perception of snipers.

Chuck Mawhinney was a skilled shooter


US Marines disembarking from landing craft on a beach

US Marines in South Vietnam, 1965. (Photo Credit: Bettmann / Getty Images)
Charles “Chuck” Mawhinney, born in 1949 in Lakeview, Oregon, spent his youth hunting with his Marine father, inheriting skills that would shape his future. Opting to become a sniper, he graduated from high school in 1967 and joined the US Marine Corps. In an unusual move, he negotiated a unique agreement: delaying his training until after deer hunting season.


Graduating from the Scout Sniper School at Marine Corps Base Camp Pendleton in April 1968, he soon found himself deployed to Vietnam.

Sniper with the US Marine Corps

US Marine aiming a sniper rifle while crouched in tall grass

US Marine sniper in Vietnam, 1968. (Photo Credit: USMC Archives / Wikimedia Commons CC BY 2.0)
Embarking on his sniper journey with the US Marine Corps, Chuck Mawhinney began his tour as a rifleman with Lima Company, 1st Battalion, 5th Marine Regiment, 1st Marine Division, transferring to various battalions before landing with Delta Company.

His pinnacle moment as a sniper unfolded near Da Nang on Valentine’s Day 1969. In response to intelligence about a large North Vietnamese Army force, he volunteered to cover the river crossing with his spotter, unleashing an impressive 16 bullets in just 30 seconds, each a lethal headshot.

“Every one of them was headshots, dead center,” Mawhinney recounted.

Chuck Mawhinney holds an impressive record


M40 rifle on display

Chuck Mawhinney’s M40 on display at the National Museum of the Marine Corps in Triangle, Virginia. (Photo Credit: Mark Pellegrin / Wikimedia Commons CC BY-SA 3.0)
While Chuck Mawhinney may not hold the record for the most kills in Vietnam (that distinction belongs to US Army Staff Sgt. Adelbert Waldron), his 103 confirmed kills and 216 probable ones establish him as the deadliest US Marine sniper in history.

More remarkable than the sheer numbers is his extraordinary accuracy – over 16 months, he missed just once, a haunting memory he later shared, saying, “I can’t help thinking about how many people that he may have killed later, how many of my friends, how many Marines… That still bothers me.”

Keeping a secret

North Vietnamese Army soldiers aiming their weapons at the sky

North Vietnamese soldiers in Quang Binh Province, 1965. (Photo Credit: Sovfoto / Universal Images Group / Getty Images)
Post-Vietnam War, Chuck Mawhinney briefly served as a marksmanship instructor at Marine Corps Base Camp Pendleton, but struggled with nightmares. In particular, he was haunted by foxhole entrapments under heavy fire.

Leaving the US Marine Corps in 1970 wound up having a positive impact on his mental health. Returning to Lakeview, he joined the US Forestry Service and married, all while guarding the secret of his service in Vietnam. This silence was broken by a fellow Marine who thrust Mawhinney into the spotlight, making his combat actions public.

Revealing Chuck Mawhinney’s secret

Chuck Mawhinney standing in the desert with a rifle

Chuck Mawhinney. (Photo Credit: PFC Garrett White / Wikimedia Commons / Public Domain)
In 1991, Joseph T. Ward’s book, Dear Mom: A Sniper’s Vietnam, featuring his and Chuck Mawhinney’s accounts, catapulted the US Marine Corps veteran into fame with credited with 101 kills, surpassing Carlos Hathcock‘s record by eight.

Initially resistant to his newfound notoriety, Mawhinney gradually embraced interviews and public appearances. Insights from these and the book, Sniper: The Untold Story of the Marine Corps’ Greatest Marksman of All Time, shed light on his journey.

Life in the public eye

US Marines walking through a rice paddy

US Marines advancing toward enemy positions during Operation Lien Kit-4, near Chu Lai, Vietnam, 1967. (Photo Credit: Hulton Archive / Getty Images)
Speaking at conventions and sniper training classes, Chuck Mawhinney imparted his veteran advice, saying, “I give them Chuck Mawhinney’s three rules of becoming a good sniper: Practice, practice and more practice.”

Beyond shaping future snipers, Mawhinney seized the opportunity to challenge stereotypes, asserting that a proficient sniper, far from a bloodthirsty assassin, saves lives by undermining the enemy’s will or ability to fight.



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