Been a number of years, but there was a time I was a fairly avid predator caller here in the east and we had a good grey fox population. The 12 gauge with number twos was pretty effective and the .22 magnum was extremely effective out to 100 yards ish on the fox sized critters.. Manageable exit (you could sew it easily) wounds. We didn't have many coyotes back then, so it wasnt' too much of a handicap.. FWIW..
