Turkey loads out of our turkey guns do just fine. I've flipped a couple at 40 yards.
#4 turkey loads are not ideal for taking coyotes, but we've flipped a few with our turkey guns. Half the time, they run off and the vultures let you know that you've done your job.
Lead shot turkey loads do pretty well out to about 25-30 yards from a tight shooting shotgun. Shoot them in the head and be ready to shoot them again if necessary. Tungsten, TSS, ect. extends the range and effectiveness of small shot over similar size lead pellets. Always be ready to shoot them again when using a shotgun. For recreational coyote hunting turkey loads aren't optimal because they don't consistently anchor coyote, especially as the range stretches out, making recovery difficult. And yes I get it, the OP isn't sport hunting and doesn't care.
