The Ruger AR-556 delivers when it comes to accuracy. The AR-556 comes standard with a 16.10-inch barrel with a 1:8 rate-of-twist. The barrel length is typical for a carbine (better for medium range ...
Ruger’s AR pistol has a barrel length of 10.5 inches with a 1 in 8-inch barrel twist. This twist, a compromise between the 1 in 9-inch twist for 55-grain bullets and a 1 in 7-inch twist for 62 grain ...
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