Re: .40 S&W or .45 ACP for song dogs???
Will it kill a coyote? Yes. However, I don't like fooling around with anything less than what kills with authority. I won't get lazy and decide to carry something lighter, shorter, etc. and give up good killing power. Coyotes are tough customers and are very smart, east of the Mississippi, therefore killing opportunities are not that frequent.
My front weapon is a 3" 12 gauge Mossberg Turkey Special with a 20" barrel, Carlson .680" restriction and Dead Coyote ammo. Nothing has survived this weapon/ammo combination, inside 50 yards.
My .25-06 is sitting next to me on a bipod, on stand-by, in case something thinks it's out of range.
I carry a Smith & Wesson M&P 9mm for finishing shots.
IMO...there's no such thing as overkill. Dead is dead.
Good hunting, Bowhunter57
If God didn't want man to eat animals, he wouldn't have made them out of meat.