ShootingTargets7 Metal Targets 4" X 3/8" 3/8" AR500 is suitable for rifles except 338 and 50cal (keep bullet speed below 3000fps at point of impact). 3/8" thick genuine certified CNC LASER CUT AR500 steel. Thousands sold shooters love them. | Search shootingtargets7 for all products. Moves and sounds off when hit. Lasts forever with proper use. See Special Offers and Product Promotions below for big savings. See description below for more product information.