 However, by 1962, presumably due to lack of sales, Remington no longer chambered rifles for .244 cartridge.In 1963, on the heels of its successful first year launch of the new Remington Model 700 bolt action hunting rifle, the .244 was re-introduced but renamed 6mm Remington.The 700 continued with the 1 in 9-inch twist and Remington also introduced new 6mm ammunition loaded with a 100 grain Cor-Lokt bullet.