Ted Gundy is a veteran of World War 2. He fought as a sniper through the Battle of the Bulge until he zigged when zagging was called for and snagged a German shell with his right leg.
He recently sent an e-mail to the producer and host of the Outdoor Channel's Shooting USA programme, asking about the intricacies of making a thousand-yard shot.
The result of that e-mail is here:
Grab a kleenex or two, the air is going to be a wee bit dusty in your area.
84 years old. 1000 yards. Five inch group.