Originally Posted by dennis
does he need a reticle scope?
Bullet drop recticle? No - the divisions are too coarse to be useful for coyotes at that range. He definitely needs a rangefinder and a scope with knobs that can be twisted after getting the range and referencing a table. At 500 yards the bullet is coming down at quite an angle. If he doesn't know the range +/- 15 yards or so, he will miss.
The suggestion to practice, lots of practice - is a very good one. It's a lot harder than folks think to hit a 3" circle at some inexactly known distance like 500 yards, first shot from a cold zero.