The EZ Aim AR500 Prairie Dog target is designed for use with hunting rifles and handguns. Recommended range is a minimum of 100 yards. The 3/8 inch thick AR500 Steel works well for any hunting bullet. White powder-coat for improved visibility of bullet impact. Note Armor piercing bullets, Full metal jacketed bullets may damage any AR500 Target: Dimensiond 12.2 High x 5.25 wide x 3/8 thick.