View Full Version : Seirra 77 Gr MK in 223
Balljoint
05-03-2010, 04:43 PM
Question: Does anyone load 77Gr MK for the Ar, have new Ar with a DPMS 1/8 24 inch barrel upper any help is appreciated
helotaxi
05-03-2010, 07:20 PM
There is an AR specific section in the Sierra load manual. Great manual if you don't already have it. Mine's not right in front of me but there are probably 10 different powders listed for the 77SMK all laid out to function in the AR.
possum1
05-03-2010, 07:28 PM
http://accurateshooter.net/Downloads/sierra223ar.pdf
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