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Message: <blockquote data-quote="Perplexed" data-source="post: 3005863" data-attributes="member: 7157"><p>Well, I went back to the range this morning with the hand guard off the AR so I could futz with the gas block in between shots.  After a couple adjustments, I got it where it would cycle Wolf Gold 55 grain .223, but it still would not cycle Champion 62 grain 5.56 ammo.  I adjusted the block back and forth, and left and right, but to no avail.  I tried a different bcg, even though the first one looked fine and had a tight gas key, with no luck.  After an hour, I got tired of the whole thing and started shooting a pinned/welded 14.5" AR.  Had zero issues with that as usual, so I may just remove the 18" barrel on the problematic AR and install a p/w 13.7" barrel with Flaming Pig.  If that works, I'll leave it alone.</p></blockquote><p></p>