This video from TFB TV, featuring James Reeves, debunks the myth that longer rifle barrels are inherently more accurate. Through controlled testing of an FN M4 (14.5-inch barrel) and an FN M16 (20-inch barrel) with identical calibers and twist rates, the experiment found negligible differences in group size at 100 meters. While longer barrels increase muzzle velocity, they can also introduce more vibration, potentially impacting accuracy.
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