Because it is an extremely high-performance cartridge, the 6.5 Grendel stretches the performance limitations of the AR-15 platform. As it is also relatively new on the market, ammunition manufacturers may not have adequate data or rifle samples in their test libraries to make accurate determinations of what constitutes a safe load in all rifles chambered for this cartridge. Do not assume that ammunition is safe in your 6.5 Grendel® rifle just because it comes in a factory box. If you see indications of case expansion in front of the head, extrusion into the ejector pin hole or extrusion into the firing pin hole, this ammunition should be considered unacceptable in your rifle. Stop shooting this ammunition immediately. As a safe and reliable ammo option, we recommend the Alexander Arms or Hornady factory ammo.

If you reload for the 6.5 Grendel®, we offer several suggestions. First, buy only Lapua or Hornady 6.5 Grendel cases, as they have superior metallurgy and wi...

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This notice pertains to any rifle based on the large format AR-10-type or LR-308 platform typically chambered in .308 Winchester, 7.62x51 NATO or other cartridges requiring the longer magazine format. This includes, but is not limited to, the ArmaLite AR-10, Bushmaster BAR-10, Rock River LAR-8, DPMS LR-308, KA SR-25/M110 series, POF P-308 series, Larue Tactical OSR and JP LRP-07™.

Unlike the AR-15/M16 platform, for which most parts are cross compatible due to the receivers’ standardized design, the large format platforms have not been standardized. Before ordering accessories and parts for your large format rifle, make sure the parts are compatible with your particular rifle platform. The only parts that are universally cross compatible are fire control components. Hand guards and barrels are each slightly different and may not be cross compatible.

H...

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