My 15 year old asked to go target shooting to try the ar15 for the first time; WOOHOO! So, took him and the wife for a weekend outing. A 1000 rounds of .223 PMC Bronze later, and I am out. Although the ammo was fairly decent, it seems to be fairly dirty making cleaning a bugger (I have had similar dirty results with the 9mm PMC ammo compared to others). I am wondering what others use for target practice and how "clean" it is as well as anything else you would recommend. He is anxious to go again.