AR500 Steel Shooting Target Combo Pack 12x20 Silhouette, 12" and 8" gong These AR500 steel targets work great for most pistol and rifle calibers, including 9mm, 45ACP, .223, 30-06 & 308 as well as most other high powered rifle calibers. Steel shooting targets are manufactured to from new high quality 3/8 inch thick AR500 steel plate made in the USA. Moves and sounds off when hit! Audible ring confirms hit Free Shipping!!!!!!!!!!