 The 7mm Remington Magnum shoots almost as flat as the .264 Winchester Magnum but launches a larger diameter, heavier bullet generating more energy than the .264 Winchester Magnum.Furthermore, the 7mm Remington Magnum benefits from a vast range of compatible bullets due in large part to the popularity of the 7mm caliber while the .264 was something of an oddity and a rather new caliber in North America.Ballistically it is almost identical to the 6.5×68mm (also known incorrectly as the 6.5×68 RWS, 6.5×68 Schüler or the 6.5×68 Express Vom Hofe) and the 6.5×63 Messner Magnum.