Here's a couple of quick videos of coyotes shot with an Stag AR-15 with 16" barrel. Load was 50 gr. V-max at about 3,100 fps. Range 100 yds.



Here is another one, same rifle same load.



It's not the caliber that is the problem. Put good ammo where it is supposed to go, and you will get good results.
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Glow Bull Warming:
He that sitteth in the heavens shall laugh: the Lord shall have them in derision. Psalm 2:4