03-25-2014, 06:24 PM
I have no experience with the 264LBC or the Grendel II but I cannot shoot to the full capabilities of my AA Grendel on most days. It is a quality piece of gear with accuracy rarely matched in an AR platform.
Based on the number of issues forum members have had with the factory ammo not chambering in the barrels billed as ‘Grendel II’, it seems as ‘variants’ on the original create more problems and damage the reputation of a great cartridge.
There is a SAMI spec for the Grendel, so all barrels that have the Grendel moniker should adhere to the accepted specs.
Based on the number of issues forum members have had with the factory ammo not chambering in the barrels billed as ‘Grendel II’, it seems as ‘variants’ on the original create more problems and damage the reputation of a great cartridge.
There is a SAMI spec for the Grendel, so all barrels that have the Grendel moniker should adhere to the accepted specs.

