Thread: Best Target Speed for 16" Barrel AR-15 .223
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Old 10-26-2020, 11:19 AM
mtgianni mtgianni is offline
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A very humble man whom I considered a genius was discussing barrel harmonics as I listened in. In general barrels are happiest in harmonics of 800 fps multiples, ie, 800, 1600, 2400 and 3200 fps. Secondary nodes occur at the half points, ie, 1200, 2000, 2400 and 2800. That allows you to go for 2800 or 3200 based solely on harmonics.
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