223/5.56 vs 6.5 Grendel vs 7.62x39 | 100 Yard Energy/Velocity Test
This video compares the 5.56x45mm NATO, 6.5 Grendel, and 7.62x39mm calibers at 100 yards, focusing on velocity and energy retention. The presenter, identifying as a "hillbilly out here in the backyard shooting," conducts a practical test using 16-inch barreled rifles. The results highlight how bullet weight, ballistic coefficient, and caliber diameter influence downrange performance.













