Hakkaa Päälle -- the term is Finnish for "Cut them down," and it's been passed down from the Finnish cavalry of Gustavus Adolphus in the 17th century to the Finnish infantry during the Russo-Finn Winter War in the 20th century. With any luck, America's light infantry will soon be saying it as well. Already established as the world's authority and leader in the production of heavy caliber long range sniper rifles -- including the M107 .50 caliber rifle -- Barrett Arms hopes to raise the bar even higher with the introduction of its new XM-109 25mm payload rifle. Based on...