Introducing the .45 Raptor for the AR-10

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Posted May 10, 2014 by muzzlevelocity in Ammunition

The AR-15 has been big-bore capable for more than a decade now with fans of the platform being able to choose from the .450 Bushmaster, the .458 SOCOM, and the .50 Beowulf. The AR-10 platform, however, has curiously remained without a big-bore option. That is, until now.

North American Sportsman, LLC has made the AR-10 a launcher of big, heavy bullets with the development of the .45 Raptor. The cartridge, which was designed to be capable of taking all North American big game out to 200-yards, is an interesting hybrid of the tried and true .308 Winchester round and the .460 Smith & Wesson Magnum revolver round. According to the .45 Raptor website, the round’s case is essentially a .460 S&W magnum case modified into a rimless design that matches the extractor specifications of the .308 Winchester. Further, .460 Smith & Wesson magnum load data is compatible with the .45 Raptor and .460 S&W Magnum reloading dies are all that are needed to begin handloading the cartridge.

Performance wise, the round is purported to deliver 2-inch groups at 200 yards. Muzzle velocities range between 3,000 f/s and 2,150 f/s depending upon bullet weight and load data used making the Raptor a far more potent round than its big bore AR-15 brethren.

Ideally, the .45 Raptor’s potential will expand beyond the AR-10 platform. A Ruger Gunsite Scout Rifle chambered in the round, for example, would be one of the most impressive blot guns on the market (hint, hint, Ruger).


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