Went to the range today. The 6mmx45 AR shot sub MOA with 55gr Sierra Blitz Kings over Xterminator, three round group with all bullets touching The 95gr Nosler Ballistic tips over XTerminator were almost as good, but need a little more work. . The 5.56 AR shooting 55gr Hornady V-max over CFE223 shot 1" groups. Conditions were sunny, light wind left to right, 50deg ambient.
6mm AR is a BHW stainless 16" barrel, 5.56 gun is a 16" Wilson Barrel. "Stock" triggers on both. Glass- 6mmx45 is a 6x18 50mm Bushnell, 5.56 is a 4x16 40mm Simmons.