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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 ...
6mm Mongoose (wildcat) 6mm Murph (wildcat) (.244-350 Legend Military Cartridge - SAW replacement) Wild Monkey; 6mm ARC – rifle; 6mm Dasher; 6mm AR (wildcat) 6×45mm – intermediate; 6.5mm Grendel [2] – intermediate; 6.5 Timberwolf (wildcat) 6.8×39mm (.277 Wolverine) [28] [29] – intermediate; 6.8mm Remington SPC [9] – intermediate; 7mm ...
The standard bullet diameter for 6 mm caliber cartridges is .243 inches (6.2 mm), the same diameter used in the .243 Winchester and 6mm Remington cartridges. To obtain maximum accuracy, bullet weight and form are matched to the rifling twist rate of the barrel. Typically, 68 gr (4.41 g) bullets are used in barrels with twist rates of 1 in 13 ...
Therefore, the 243 Catbird is a 6mm-06 with a 35 degree shoulder and a 1.2mm longer case. [10] 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 ...
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.
The 6mm Remington has the advantage of a relatively low recoil of about 10 ft/lbs depending on load. Some gun writers, including Chuck Hawks of Guns and Shooting Online believe that this has the advantage of allowing shooters to be comfortable with the rifle without developing a flinch, allowing them to focus on accurate shot placement. [3] [4]
The 6mm AR takes advantage of the wide variety of 6.2 mm (.243 in) caliber bullets. Slim, long bullets with high ballistic coefficient are ideal for energy retention at long ranges. Slim, long bullets with high ballistic coefficient are ideal for energy retention at long ranges.