Posted April 9, 2015 3:11 pm by Comments

By Nathaniel F

7-rem-mag-with-20-inch-barrel

Rifleshooter continues his series on velocity versus barrel length with different rifle cartridges (.300 Winchester Magnum, .223 Remington/5.56×45, and .308 Winchester/7.62×51), this time with a rifle chambered in 7mm Remington Magnum: Test Protocol Ballistic data was gathered using a Magnetospeed barrel mounted ballistic chronograph. At each barrel length, the rifle was fired from a bipod […]

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