Weatherby has also published data comparing the 6.5 WBY RPM to other 6.5mm cartridges. For example, the 6.5 Weatherby RPM is capable of pushing a 140-grain Nosler Accubond bullet to 3,075 fps which, according to the company, is 146 fps more than .264 Win Mag (2,929 fps), 325 fps more than 6.5-284 Norma (2,750 fps) and 420 fps more than .260 Remington (2,655 fps) cartridges loaded with the same bullet.
