20" White Oak Armament SPR barrel upper: 5.56 load work ups (.2 MOA)

2 5.56 load work ups for my 20" WOA SPR rifle length barrel upper in .223 Wylde. load work ups are: 1. Accurate 2495, 77gr Sierra MK, CCI #41 primers, Lake city brass. 2. Varget, 77gr Nosler custom competition, CCI #41 primes, Federal 5.56 brass. best group was under .2 MOA.