Birchwood Casey World of Targets 10in Single Hole AR500 Steel Gong - Birchwood Casey's World of Targets feature durable steel construction for years of fun and practice. The AR500 Gong is 3/8in thick with a 3-inch target spot and a hole for hanging so you can build your own range. It is rated for centerfire rifle and handgun use, and are made in the USA.