** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** The 6.5 mm Grendel cartridge only ...

There are a few intermediate carbine cartridges that either compete with the 5.56mm or attempt to fill the gap between 5.56mm and something larger with more range like a .308. The 6.5 Grendel falls ...