Constrained by the length of the 5.56Ã≴5mm NATO round, the Grendel designers decided to use a shorter, larger diameter case for higher powder volume while allowing space for long, streamlined, high ballistic coefficient (BC) bullets. The 6.5mm Grendel design goal was to create an effective 200â∸00 yard AR-15 magazine-length cartridge for the AR-15 that surpassed the performance of the native 5.56mm NATO/.223 Remington cartridge. Bullets from other manufacturers may not produce equivalent pressure or velocities therefore, it is not recommended that this data be used with components other than as listed. Factory loads do not exceed 50,000 psi.Disclaimer: The load data contained on this site is intended for use with Barnes Bullets. Seventeen 6.5 Grendel cartridges will fit into an Alexander Arms-supplied magazine dimensioned to fit into the magazine well of an AR-15âs lower receiver. Īccuracy in the 6.5 Grendel, in suitably barreled AR-15 rifles, readily attains sub-MOA, making it a great choice for long-range deer and varmint hunting. The name '6.5mm Grendel' was a trademark owned by Alexander Arms until it was legally released to allow the cartridge to become SAAMI standardized. Source(s): Alexander Arms Pressure-safe Load Data
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