NRA Steel Knockover Plates Six 8&rdquo; Round Action Pistol Target 8 Round Falling Plate Set of six 8 round targets 2 x 4 pads For lead target rounds, no hot factory or mag loads. Not for .223 rifle etc. We can make these out of AR500 (Very Hard Steel) but they will cost more. A36 steel (Mild Steel) 3/8 in. thick