A cache of more than 180 Roman lead sling bullets – thought to be the largest ever found in Britain – has been unearthed in southern Scotland. They were discovered during an archaeological dig at Burnswark in Dumfries and Galloway. Investigations have been ongoing at the flat-topped hill near Lockerbie over the past fortnight. Dark organic soil was also found nearby which could be the remains of a bag or sack for the bullets. Archaeologists have been trying for centuries to assess the role of Burnswark in the Roman occupation One theory is that it may have seen the first battle in the Roman invasion of Scotland around 140 AD.