5.56 mm NATO “Green Tip” vs. HARD Steel (500 Brinell) By Aaron Spuler | February 24, 2012 http://www.youtube.com/watch?v=nqTZAzUj1PQ FacebookTwitterMoreEmailLinkedInPinterestPocketPrintRedditTelegramTumblrWhatsAppLike this:Like Loading... Related Posted in Ammo