I finally recorded a video comparing the damage of coyote skulls from a pellet and a slug. Both coyotes were shot in the same farm at 70 yards, a year apart.
The first coyote was shot with my 500mm Crown with the AA18gr pellet at 32ft.lb whereas the second coyote was shot with my 600mm Impact with the H&N 23gr slug at 45ft.lb. The shot placement for both was on the left temple.
I never shot any coyotes before so my first coyote was a completely new and exciting experience to me. I didn't know what to expect or whether 32 ft.lb was enough to kill one. Apparently it was enough as I learned the coyote's skull is not very thick. I have since shot two more coyotes using my Impact and the 23gr H&N slugs, an ammo that I trust and prefer for coyote hunt.
Have a watch and see the damage difference in the skull fracture and penetration.
Thanks.