How do you define hunt fox ,with dog or gun as already stated 308 is to big for fox .I control fox's with a remi 700 in 223 even using v-max heads pelt damage isn't to bad ,most of my fox control is done at night , my shooting partner uses the lamp and call ,i shoot , this is a succesful way to control fox's for us this season we accounted for 81 our best night being 8 ,sometimes i shoot alone using a scope mounted lamp best night was 3 but it was hard work lamps used are nightforce these are verry good .Good luck in what meathod you use