The six.5mm Grendel is undoubtedly an intermediate cartridge jointly made by British-American armorer Bill Alexander, aggressive shooter Arne Brennan (of Houston, Texas) and Lapua ballistician Janne Pohjoispää, for a minimal-recoil, higher-precision rifle cartridge especially for the AR-15 System at medium/extended range (two hundred–800 yard). It is an improved variation of the six.5mm PPC. The 6.5mm Grendel cartridge was 1st unveiled in Might 2003 within the Blackwater Education Facility in North Carolina, exactly where it remained supersonic at one,200 yd (1,a hundred m) assortment and out-shot the seven.62mm NATO with only half the recoil. Considering the fact that its introduction, it's tested for being a flexible cartridge and it is now increasing into other firearm design platforms which include bolt-motion rifles along with the Kalashnikov procedure.
The name "Grendel" is influenced by the mythical monster antagonist with the Old English epic poem Beowulf. It had been a trademark owned by Alexander Arms (Monthly bill Alexander's company in Radford, Virginia) and produced at Radford Arsenal, right until legally launched in 2010 for SAAMI standardization with collaboration from Hornady. The target of the 6.5mm Grendel design and style was to develop an efficient STANAG magazine-size cartridge for that AR-fifteen System that may achieve two hundred–800 yd (one hundred eighty–730 m) and surpass the performance from the native 5.56mm NATO/.223 Remington cartridge. Constrained with the dimension with the STANAG Journals, the Grendel's designers made a decision to utilize a shorter, larger-diameter situation for larger powder volume although letting Place with the extensive, streamlined, high ballistic coefficient 6.5mm (.264 cal.) bullets. Firing manufacturing unit-loaded ammunition with bullets starting from ninety to 129 grains (five.eight to eight.4 g), its muzzle velocity varies from 2,500 ft/s (760 m/s) with 129- and a hundred thirty-grain (eight.four g) bullets to two,900 ft/s (880 m/s) with 90 gr (5.8 g) bullets (similar in velocity to a 77-grain (five.0 6.5 Grendel Hunting Ammo g) five.56 mm round). According to their situation materials and bullet excess weight, 6.5mm Grendel cartridges weigh fourteen.seven to 17.8 grams (227 to 275 gr).
The situation head diameter of your Grendel is similar to that on the 5.6×39mm (.220 Russian), seven.sixty two×39mm and 6.5mm PPC instances. This diameter is bigger compared to the five.fifty six×45mm NATO, therefore necessitating the use of a non-conventional AR-fifteen bolt. The enhanced situation diameter results in a little reduction while in the magazine ammo capacities. A six.5mm Grendel journal With all the exact same Proportions for a 30-spherical STANAG journal will hold 26 rounds of Grendel ammunition.
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