Definitely agree here. Frankly, this mode of thinking is especially applicable for deer hunting as well.

Coyotes (and deer) really aren't as big as a lot of guys might think they are. And their vitals (read lungs and liver) are NOT the same shape as a deer.

A coyotes heart might be ~3" round and ~4" long, tilted slightly forward at the top, and actually quite low in the body. Their lungs, unlike deer, are hugged relatively close to the front of the ribcage, shaped like a sail. They'll be about 6-8" tall, and 12"-14" long. As a rule of thumb, the lungs take up the front half of the ribcage. The bottom of the lung does not reach, let along extend past the end of the sternum (can see it on most gaunt coyotes, a little harder to pick out on fatted prime dogs). The top of the lung angles backwards, reaching backwards from the end of the sternum about half way to the rear of the ribcage.

Getting enough pellets onto the heart and lungs to stop a coyote fast enough to find them is difficult. 5 buckshot pellets in an 8" circle might result in a long running dog.

Finding rifled slugs accurate enough in a .410 to drop coyotes is a no brainer. Buckshot just isn't what I'd call "effective" in the .410 unless they're dang close.