If it was an incendiary round, it surely would have triggered explosives. A lot of snipers load incendiary rounds in the BMG (.50 cal). I don’t know much about the weapon this marksman was using.
Thats what I was guessing too..incendiary round.
See one of those Schmidt & Bender scopes sell for
a bit over 3.5K online.
Great shooting taking out that much trash at once.