Ammo 2 Go by David Lewis 4/14/2021
A side by side comparison of 5.56x45 versus the larger 6.5 Grendel cartridge. What do you give up selecting each over the other and which is better for your needs?
The 5.56 NATO, also known as the 5.56x45mm, is one of the most popular rounds for AR-style rifles. As the military version of the .223 Remington (they are extremely similar but not the same), the 5.56 NATO is also used for hunting, target shooting, and even home defense.
But some newcomers are challenging the 5.56. The 6.5 Grendel, for example, is creating a loyal following among the fans of modern sporting rifles. So which should you choose in the 6.5 Grendel vs 5.56 debate? That depends on many factors, including how you want to use the ammo.
6.5 Grendel vs 5.56: The Major Differences
5.56 NATO 6.5 Grendel
Released 1980 2003
Bullet Diameter .224 inches .264 inches
Rim Diameter .378 inches .44 inches
Case Length 1.76 inches 1.52 inches
Total Length 2.26 inches 2.26 inches
Bullet Weight 50 to 65 grains 90 to 130 grainsMore:
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