Ballistic advantage opmod modern series 5.56 ar-15 government profile barrel, 16", ml gas - Hornady Frontier 5.56x45mm NATO 68 Grain Boat-Tail Hollow Point Centerfire Rifle Ammunition

Haven't used it yet, but gave it 5* because of Hornady quality. Wanted 68 gr since it's in the "Green Zone" (BEST) for 1:8 TWIST. Price was right. Even though I range-shoot @ short distance, I still want to compare it vs. 55 Gr plinking stuff.