My first 6.5mm Grendel Project - after 3 .223 Rem AR-15s

[montana]

Factory 123 grain Hornady A max and SST ammo have shot excellent in my rifles. 27.8 grains of IMR 8028 XBR powder with 123 grain Sierra match Kings, Hornady 123 grain SST and A Max bullets have shot very good with my AA and Lilja barrels. I use Lapua brass and Hornady brass. All these loads shoot sub MOA in my rifles. I would have to say the Hornady 123 A Max ammo is the standard for factory ammo to use.