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  1. #1
    Marksman atalon's Avatar
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    Sep 2012
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    Sierra load data for 300 BLK

    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...c-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.
    Last edited by atalon; 07-23-2013 at 23:43.

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