The 6mm Remington rifle cartridge, originally introduced in 1955 by Remington Arms Company as the .244 Remington, is based on a necked down .257 Roberts cartridge (itself a necked-down 7×57mm Mauser) using a .24/6mm bullet. Known for a combination of high velocity, long range, flat trajectory, and accuracy, it is suitable as a dual use hunting cartridge for both medium-sized big game and varmints. When used in the less common earlier slow twist barrels, it offers exceptional range for varmint applications. While not as commercially popular today as the .243 Winchester, the 6mm Remington enjoys a slight ballistic advantage and continues to be popular with handloaders and custom rifle builders.
6mm Remington ammunition is uncommon, but is still available without requiring extreme effort. The most easily found 6mm ammo has a pointed soft point bullet that weighs between 55 grains and 105 grains. Muzzle velocity can exceed 4,000 feet per second, and the heaviest bullets can generate more than 2,000 foot pounds of muzzle energy. For shooters willing to search, specialty bullets including Nosler Partition and Hornady SST help squeeze from this cartridge the last possible drops of performance.
The 6mm Remington answers the “One Gun Only” question. It reaches to long ranges, and is available in a wide variety of ammunition. Due to this versatility, this cartridge is a jack of all trades.