Not familiar with level 4 plates this was 3/8" triblaze the owner assured me nothing would go through at that distance. I made sure he knew and agreed I was not responsible. But you can see they flew well and are pretty much equidistant moving up from the first shot at the bottom. I looked like you stuck it in a drill press. No target movement or sound, just dust under the target. 1/2" ar500 will stop it at 500 with no dings to the surface but it will bend the t-post if you have it on a t-post hanger.