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Old December 25, 2013, 10:53 AM   #8
Marco Califo
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Join Date: April 4, 2011
Location: LA (Greater Los Angeles Area)
Posts: 2,598
For what it is worth, the Sierra manual lists higher loads for their 55 grain bullets. For bolt guns they go past 27 grains. They have a separate guide for AR type, the main diff being lower velocities which are lower, mainly because you are talking about 24" vs 16.25".
http://accurateshooter.net/Downloads/sierra223ar.pdf
http://accurateshooter.net/Downloads...223rembolt.pdf
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Last edited by Marco Califo; December 25, 2013 at 02:37 PM.
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