The 6.5 mm Grendel cartridge only looks small. Instead of burning copious charges of propellant, the Grendel lets its slender 0.264"-diameter bullets do the heavy-lifting of producing flat ...

The 6.5 Grendel could continue to gain popularity as people look for a round that fits AR-15 pattern rifles but offers better long range performance at about the same price as 5.56mm.

Our latest cartridge showdown is the 6.5 Grendel vs 308 Winchester. See how they stack up and which one is better for you.