The Remington Arms Company introduced the 6mm Remington cartridge in 1955. Fred Huntington designed the cartridge by necking down the case of a .257 Roberts to accept a 0.243" diameter bullet. He topped this cartridge topped with bullet weighing 75 grains and called it the .244 Remington. Nine years later the cartridge was renamed the 6mm Remington, and the name has stayed the same since that time.
The 6mm was intended for varmint hunting, and it maintains spot on accuracy at ranges as far out as 400 yards. The 100 grain bullet maintains a velocity better than 1,000 feet per second even as it sails past the 400 yard mark, making it very effective for dispatching even large varmints. Some sources have claimed to frequently make shots at 500 yards and more. Deer hunters have come to appreciate the 6mm Remington as it performs very well on medium sized game at distances as far out as 300 yards.
The 6mm has accuracy as good as any other cartridge available for sale today, and due to the mild recoil, is a great choice for a beginning shooter or for hunters who want a deer and varmint rifle with lighter recoil. The similarity between the 6mm and .243 Winchester is unmistakable, yet the 6mm just edges past the .243 in performance.
The 6mm Remington is chambered in bolt action rifles manufactured by many companies, and is also available in single shot rifles. Performing well as a hunting cartridge, the 6mm saw only limited popularity with competitive shooters, and never really enjoyed the success in that arena that its cousin the 6mm BR did.
6mm Remington ammunition is uncommon, but is still available without requiring extreme effort. The most easily found 6mm ammunition 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 for the last possible drops of performance.
The 6mm Remington answers well the “One Gun Only” question. It reaches to long ranges, and is available in a wide variety of ammunition permitting use in a breadth of different applications. Due to this versatility, this cartridge is a “jack of all trades” cartridge.