The .260 Remington was developed by Jim Carmichel as the 6.5mm "Panther". This cartridge combines moderate recoil with exceptional accuracy in short action rifles. We neck down a 7mm-08 Rem. case to 26 caliber. In terms of game-stopping bullet momentum, the .260 Rem. actually surpases the .270 Win with a 130gr bullet at 200 yards. For more info please view our centerfire ballistics section of the website HERE .