The .444 Marlin is a big bore rifle cartridge designed in 1964 by Marlin Firearms and Remington Arms. This cartridge can push a 240 grain bullet at velocities over 2,400 ft/s generating 3,070 ft·lbf of energy (730 m/s and 4,160 J). While this cartridge never became a best seller, it still retains a dedicated following today.