For those interested in 300 AAC Blackout Sierra has put out some load data for their bullets for 110gr to 180gr. Here is the PDF http://sierrabullets.files.wordpress.com/2013/07/300-aac-blackout.pdf
Looks like I have have been running a little light on mine. May be why it is not fully cycling. I will up the dose and see what happens. Otherwise I am going to switch from a carbine gas to a pistol gas and shorter barrel and put it on my pistol lower for just such occasions. Then if I get it running well with subsonics I can then feel comfortable spending the money to become a stamp collector.
Looks like I have have been running a little light on mine. May be why it is not fully cycling. I will up the dose and see what happens. Otherwise I am going to switch from a carbine gas to a pistol gas and shorter barrel and put it on my pistol lower for just such occasions. Then if I get it running well with subsonics I can then feel comfortable spending the money to become a stamp collector.
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