My longest shot on a coyote to date is just over 600 yards.
I have an older heavy barrel Remington 700 in 243 caliber that I load 95 gr Nosler Ballistic Tip bullets at about 3200 fps, it's my longer range coyote gun.
I have the rifle zeroed at 300 yards so shots out to 600 yards is not that difficult; 600 yards is about the maximum safe shot around here.
There's some sections you can see them farther but the grounds to flat and most of the hedge rows have been ripped out by the land rappers, our sections have roads around all four sides.
I'll have to say 1860 yards on a coyote is some darn good shooting, even a big coyote is not all that big at that distance.
Best Regards
Bob Hunter
www.huntercustoms.com