Report: Chris Kyle Not World's Deadliest Sniper British sources say Royal Navy sniper has more kills By Neal Colgrass, Newser Staff Posted Feb 2, 2015 4:25 PM CST 168 comments Comments Chris Kyle poses with a copy of his book, "American Sniper." (AP Photo/The Fort Worth Star-Telegram, Paul Moseley, File) (Newser) – Chris Kyle's book calls him the US military's deadliest sniper—but is he the world's? Not according to a British report that credits a Royal Navy sharpshooter with tallying the most kills, the Sun reports via the Telegraph. Unnamed sources say the British corporal is still serving and has 173 confirmed kills, most of them during Britain's deployment in Helmut province in 2006 and 2007. He is said to have killed 90 enemies in a single day. Kyle, whose story is told in the film American Sniper, officially had 160 kills but guessed his true total was about 250. British armed forces refuse to name their guy for fear of revenge attacks. Meanwhile, the Hollywood Reporter says American Sniper banked a stunning $30.7 million this weekend, nearly breaking a Super Bowl-weekend record.