Between December 2007 and May 2008 inclusive, British troops in Afghanistan used some 980,000 rounds of 5.56 mm calibre, 930,000 rounds of 7.62 mm calibre, and 186,000 rounds of 12.72 mm calibre, also known as .5, 0.50, or 50 calibre.
This is broken down for use by month in the following table, rounded to the nearest thousand:
Month 5.56mm 7.62mm 12.72mm December 83,000 78,000 22,000 January 72,000 65,000 6,000 February 92,000 87,000 15,000 March 400,000 460,000 62,000 April 290,000 210,000 73,000 May 48,000 27,000 8,000
These data includes rounds used in training, as well as operational usage.
The civilian logistic aviation support contract for the International Security Assistance Force in Afghanistan is managed by NATO. It was a NATO decision to change contractors.