So I bought a 3/8" thick, 16"x12" AR500 raw piece. It was intended to be a gong. Problem is, it didn't have holes to mount the gong, and as a result was really cheap! I thought I was getting a deal! My thought process was, I get it, drill holes in it, and I am set! Mistake! I broke out my drill, drillbit, and went at it, not even a dent! Then I remember. AR500 is armor! Stupid me Can anyone help? Waterjet, super duper drill owner, plasma owner, or someone who owns a 50 BMG, and can shoot two rounds at it so I can mount the darn thing!