Buy 6.5 Grendel Ammo OnlineThe 6.5mm 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, as a small-recoil, significant-precision rifle cartridge specifically for the AR-15 System at medium/extended ra