So I can shoot sling prone thousand yard matches, I am building an upper for my target AR in 224 Valkyrie. As a hedge, looking to develop loads with heavier (80gr+) match bullets that remain supersonic at 1100 yards, which requires very high BC bullets. Unfortunately, Sierra MatchKings don't make the cut. Using my Sierra Infinity 6 program, Hornady 88gr ELDM bullets and Bergers will stay supersonic well beyond 1200 yards.

Can anyone suggest any other bullets, or loads? I will be using a 24" White Oak barrel with a 1:6.5" twist. Barrel profile is heavy match.

Thanks in advance for your help!

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