"Not to be outdone, Westley Richards & Co. entered the foray and introduced the .476 Magnum Express for single and double rifles in 1907. Almost a decade earlier, Westley Richards & Co. was the first to load .500 3” Black Powder Express with Cordite, creating the .500 3” NE. Again, Westley’s turned to this same parent case (see a trend?) necking it down to a .476” caliber bullet, creating the .476 Magnum Express. This cartridge shoots a 520gr bullet at 2,100 fps generating 5,085 ft-lbf of energy at the muzzle compared to the muzzle energy of just over 4,900 ft-lbf created by Rigby’s, Holland’s, and Lang’s proprietary cartridges. While the differences were marginal, Westley Richards contended nonetheless the .476 Magnum was superior to any other competitor’s comparable offering. Even going so far as to say in the 1912 catalog:"