2K yards is over a mile ... try the math.
Fifty caliber weapons have held the record over the years, I guess. It goes back to 1874 at Adobe Walls, Texas, where Billy Dixon fired a Sharps “Big 50” and shot an Indian off a horse at 1,538 yards (so the story goes). Much has been written about this achievement. Since ballistic tables have been developed in recent years, it’s been said that Billy would have needed to hold over the victim’s head as much as 10 or 12 feet - - never mind whatever the wind was doing. It’s always been one of my favorite shooting stories, though.