Okay...I shot a different upper (WOA 3 Gun 2.3) today. I had to sight in my offset irons and new scope (LRHS G2). The reticle is not intended for precision so I dialed up and held at one of the finer sub tensions.
Hope AAC can refine their SMK load just a little more for consistent velocity but otherwise, not bad for cheap SMK and OTM. I would say both my WOA (16 SPR and 18 3 Gun shoot this stuff about the same, with the slight edge going to the 16 SPR as it seems more heat tolerant and more consistent out of Mega Billet upper). 3 gun is nested in a Zev forged upper. 3 gun WOA is also over-gassed (gamer gas) but that's by design.
Wind: Mild 6-10mph R to L
Temp: Warm 81F
Humid: 28%
Ammo: AAC OTM77 and AAC 77SMK
Velo: OTM77 2660-2710 SMK77 2673-2720
Bipod and rear bag, concrete bench...My least favorite type of shooting but prone on the bench range is not allowed.