This is the ammo any 5.56/223 rifle needs to become useful at the target range – all AR-15s included. Its 55 grain bullets and standardized charges of clean-burning propellant both give it a solid, predictable 3,240 fps muzzle velocity. As FMJs the bullets aren’t ideal for self-defense (although they will get the job done if need be), but they’re hard enough to avert deformation during feeding and ignition and streamlined enough to deliver satisfyingly flat trajectories.
You may notice that these rounds’ cases are gray around their mouths. They’re not reloaded – they’re heat-treated, and Winchester didn’t waste anytime polishing them up for cosmetic purposes. This nonmagnetic and non-corrosive ammo is a great investment if you plan on handloading your empty brass!
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