Burnswark Hill - whistling Roman slingshot found

[Imperial Dave]

http://www.livescience.com/55050-whistling-sling-bullets-from-roman-battle-found.html

and to complete the picture another article on the possibility of a battle there

http://www.academia.edu/1146841/Hillfort_under_attack_Roman_siege_warfare_or_training_exercises_at_Burnswark