If you are calling, IMO, 6x is too much. I missed some opportunities when the coyotes came in from unexpected directions and were so close I could not find them and aim properly when I had a 6x. Unfortunately, they used terrain to get away before I could find them. Field of view can be too small.
I use a 2.5-8x36 for my calling rifle.
+1
Have been calling coyotes for many years and have tried just about every scope made, the Leupold 2.5-8x is my favorite