reloaderscodex

Doing a load work up with the 69gr Sierra match-king, and IMR8208xbr for my 20" WOA SPR barreled upper AR15 using both the 10 rd ladder test method, and the OCW method and putting them head to head to see which method is better for load development.

IMR8208xbr powder, 77gr Sierra matchking bullets, CCI #41 primers, Lake city brass, load work up for my 18" Ballistic Advantage rifle length .223 wylde barrel upper.

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.