A rifle firing .50 BMG is the highest caliber weapon you can own without a special permit. The MK211 Raufoss is a heavy-core/explosive/incendiary .50 BMG round usually employed for anti-matériel and long-range sniping purposes. I was unabale to find any for sale online, but in one of the videos, he said they typically go for … Continue reading .50 BMG MK211 Raufoss Round vs.