This review of the Knight's Armament KS-1 rifle details its performance with various ammunition types. The rifle features a 13.7-inch cold hammer-forged 4132 chromoly vanadium barrel with a 5.56 NATO chamber and a 1:7 twist rate. Testing involved 30-shot groups at 100 yards to assess accuracy and heat effects, with results varying significantly by ammunition, indicating potential compatibility issues.
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