The NEW AR-15 Complete Owner's Guide: [ Ссылка ]
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Chronoing two factory match 5.56mm 77gr loads using the MagnetoSpeed V3. Test rifle is an AR15 with 16" Rainier Arms UltraMatch 1:8 twist barrel and 223Wylde chamber.
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Temp: 42F
Humidity: 67%
Pressure: 28.82Hg
Elevation: 1,070ft
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