for fox, i shoot a 3" copper plated or hevi shot #4 turkey load.

for yotes i shoot #4 lead buckshot(different from #4 turkey or game loads..it will say #4 buck on the box and a 3" shel has 41 pellets)

you COULD shoot #4 buckshot at fox...but if you hit a fox good with alot of the buckshot pellets, its gunna be ugly.

i absolutely clobbered a red this year in the head with a 3" mag of copper plated #4 turkey load..seriously 20+ pellets fell out of the head when we skinned it...plus the ones that pentrated and didnt call out..but...the interesting thing was the hide was in real good shape...there werent any big holes or tears or anything of that nature...but my buddy hit that same fox with 2 #4 buckshot pellets and it put decint sized holes in it..