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This is a list of firearm cartridges which have bullets of a caliber between 6 millimetres (0.236 in) and 6.99 millimetres (0.275 in). Length refers to the cartridge case length OAL refers to the overall length of the cartridge
Like the .243 Winchester, it has a fast rifle twist of 1-10 inches. However, if 105 grain bullets are used, it is recommended that a 1-9 or even faster twist is used to stabilize the bullets. Very few manufacturers specifically create 6mm Musgrave rounds, with PMP (Pretoria Metal Pressings) method. However, many South African distributors have ...
The 6mm Advanced Rifle Cartridge (6×38mm), or 6mm ARC for short, is a 6 mm (.243) caliber intermediate rifle cartridge introduced by Hornady in 2020, as a low-recoil, high-accuracy long-range cartridge, designed for use in the M16 platform at request of a specialized group within the U.S. DoD for its multipurpose combat rifle program.
In December 1955, Guns Magazine writer, H. Jay Erfurth in an article titled Two Varmint-Big Game Rifles discussing the .244 Remington and .243 Winchester wrote "the Winchester bullet of 100 grains is the better one for deer and medium game than the 90-grain Remington pointed soft-point, though the differences seem mostly splitting hairs." He ...
The 6mm BR / 6.2x39mm is a centerfire cartridge created for benchrest shooting. The cartridge is also known as the 6mm Bench Rest or simply 6 BR, and has also developed a following among varmint hunters because of its efficiency. [5] There are two basic variants of very similar dimensions, known as the 6mm BR Remington and the 6mm Norma BR.
The 6XC is a 1000-yard cartridge, comparable to benchrest calibers such as 6x47mm Swiss Match, 6.5×47mm Lapua and 6 mm/22-250; it fits into cartridge class that exceeds the velocities of benchrest calibers such as 6mm BR Remington, 6mm BRX and 6mm Dasher. David Tubb has claimed several wins with the 6XC in NRA High Power National Championships ...
The .243 Catbird was developed by Jarrett Rifles to achieve 4000 fps with a 68-70 grain bullet. [10] [11] Actual performance tests showed the cartridge achieved 4100 fps with a 70 grain bullet, 3800 fps with an 85 grain bullet, and 3500 fps with a 95 grain projectile. [10]
Slim, long bullets with high ballistic coefficient are ideal for energy retention at long ranges. [2] It is similar to the 6PDK which also uses a 6.2 mm bullet and a similar muzzle energy and case capacity to the 6mm AR and 6.5 Grendel, in a casing somewhat popular [3] for the AR-15, a necked-down 6.8mm Remington SPC casing. [citation needed]