I have no idea the calculations and consideration of variables that would go into a shot at that distance, but regardless, once again, Canadian forces rule supreme.
https://beta.theglobeandmail.com/new...ticle35415651/
"A sniper with Canada's elite special forces in Iraq has shattered the world record for the longest confirmed kill shot in military history at a staggering distance of 3,540 metres.
Sources say a member of Joint Task Force 2 killed an Islamic State insurgent with a McMillan TAC-50 sniper rifle while firing from a high-rise during an operation that took place within the last month in Iraq. It took under 10 seconds to hit the target."