I wouldn't worry so much about turrets, for most coyote hunting, you wont have time to dial for long shots. I would recommend getting a scope with an excellent ballistic reticle, with multiple holdover hash marks, and possibly a windage tree. Then it's just a matter of practice and you are...
Congrats on the hunt, gotta start them while they're young. Antelope hunts are the perfect way to introduce kids to big game hunting. I wish I had pics like that of my early years, hunting speed goats with my dad.