Groups & Velocities from 6 AR-15 Barrels: AAC 77gr OTM Review
This video provides a detailed review of AAC's 77-grain Open Tip Match ammunition (AAC556OTM1-20) for the AR-15 platform. The creator tests the ammunition across six different AR-15 barrels, meticulously recording group sizes and velocities using both Garmin Xero C1 Pro and ProChrono DLX chronographs. The analysis includes A-ZED scores for group performance context, comparisons against other ammunition loads in each barrel, and highlights any unusual findings like extreme low-velocity shots or platform variability. The content is sponsored by Jack Wolf Knives and sets the stage for a future video on lot-to-lot variations.










