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What size gas port?
I have an 300 whisper AR with a 16'' noveske barrel. I made some loads using accr no 9 and 220 grain matchkings. The action would not fully cycle. I loaded up to a little beyond supersonic with the 220s and the action would still not cycle. The best measurement I could get on the gas port was right around .07. Is this too small or was the powder too fast?
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