Back in 2011, Ruger unveiled its Gunsite Scout Rifle (GSR) in honor of the Arizona training facility founded by Jeff Cooper in 1979 (Gunsite Academy). Chambered in .308 Win., the original Ruger GSR was the formal rendition of Cooper’s 1984 “Scout Rifle Idea,” published in Gun Digest. Ruger’s modern interpretation of Cooper’s bolt-rifle concept has now evolved to chamber the .223 Rem./5.56 NATO cartridge.

Largely similar to the Ruger GSR .308, the new 5.56 NATO version falls in the M77 family and uses several Mauser-style features such as a claw extractor, controlled round feed, receiver-mounted ejector and three-position safety. Other familiar features …read more

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