An SAS sniper killed three Islamic State suicide bombers by firing shots from the world's most powerful rifle through a 10inch wall, according to reports.
The marksman, said to have been serving as an adviser to Iraqi forces, fired 30 rounds from a Barrett M82 .50 calibre anti-materiel rifle into a two-storey command post in the city of Ramadi in Iraq.
Military sources have suggested that the operation saved many lives.
Ramadi was recaptured by security forces last week It would be the first time that British troops are known to have taken part in a direct ground attack against Isil.
When it was discovered that the bombers were in the building, several options were considered, including an air strike and a rocket launch, but both were deemed too dangerous to civilians, it has been claimed.
Instead, the sniper based himself in another building around 1,000m away and fired into the command post, almost completely destroying one of its walls.
The .50 cal M82 (not the guy in this incident); seems like one hell of a powerful beast.
Give a man a fire, and you keep him warm for a day. SET a man on fire, and you will keep him warm for the rest of his life...