This video provides a practical velocity test of Fiocchi 69-grain Sierra MatchKing .223 ammunition across three different AR-style rifle barrel lengths: 7.5 inches, 16 inches, and 20 inches. The presenter, demonstrating experienced authority, uses a Caldwell Ballistic Precision Chronograph to record actual muzzle velocities, revealing significant differences based on barrel length. The data highlights how barrel length impacts projectile speed, offering valuable insights for firearm owners and enthusiasts.
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