This rifle round became a very popular deer and elk cartridge due to the widespread praises of gun writer Jack O’Connor who used the cartridge for 40 years and praised it often in the pages of the magazine entitled “Outdoor Life.” For hunters, it is among the most popular and widely used cartridges worldwide. When loaded with a bullet that expands rapidly or fragments in tissue, this cartridge delivers devastating terminal performance, even taking down elk and moose. It comes chambered in all firearm varieties: bolt-actions, single-shots, lever-actions (such as Browning BLR), pump-actions (such as Remington 7600), autoloaders (such as Remington 7400) and even a few double rifles.