http://www.midwayusa.com/product/88...rifle-gong-10-round-target-ar-550-steel-white Reading up on this thing the best I could, it seems to be a good quality product. Wondered if anyone had any firsthand experience? Also, the 550 steel. If I'm shooting 55 gr .223, what sort of minimum range to fire at this target without damage to the target? I've read from 100 yards to 300 meters. Just not sure which is correct.