I myself teach a hunter saftey class and use the milk jug's as target's then I place larger target's out and then to a 3d, everyone is alway's saying why a milk jug well if you can hit a milk jug time after time then your shooting skill's just got better not only that to many hunters out there look at the whole deer instead of a spot like the heart area when they shoot causing a poor shot about 7 times out of 10, If you are worried about ruining your arrow's attach the milk jug to a round bail or square bail of hay