Bronco Posted September 17, 2006 Share Posted September 17, 2006 This has to be one of the most obscure reasons for an AR to quit. At last months CMG team match my carbine started jamming on the coal creek stage, once in a while it would run a few shots then quit again. Well I finally got time to tear it down and see what the problem was. A blown primer in the gas key! Now there isn't a lot of clearance to fit a spent primer down the gas key, about the same as the primer tube on a Dillon reloader. Didn't take long to find but couldn't tell what the obstruction was till I got it out. Man was I surprised. Gun runs fine now. Link to comment Share on other sites More sharing options...
Larry White Posted September 17, 2006 Share Posted September 17, 2006 That is wild.---------Larry Link to comment Share on other sites More sharing options...
dogs bollux Posted September 17, 2006 Share Posted September 17, 2006 Mr. bronco..... was this factory ammo or did you reload it? REMEMBER..... As Always Yuer Ronge Link to comment Share on other sites More sharing options...
TommiF Posted September 18, 2006 Share Posted September 18, 2006 A blown primer in the gas key! Been there. I had bunch of bad brass with loose primerpockets and usually I found primers inside lower and magazines but one found it's way to gaskey. My gun (20" rifle) stopped totally, no bolt action at all. Couse I saw lots of primers at shootingtable, I was expecting that primer might be in gaskey. There it was, I got it out with 3mm drill. Tommi Link to comment Share on other sites More sharing options...
benelli2 Posted September 18, 2006 Share Posted September 18, 2006 Had it happen to me once as well, so it isn't that uncommon, Murphy just spreads it around. Perhaps Dogs Bullox can be next Link to comment Share on other sites More sharing options...
cking Posted September 18, 2006 Share Posted September 18, 2006 Had blown primer get under trigger and foul things up Link to comment Share on other sites More sharing options...
dogs bollux Posted September 18, 2006 Share Posted September 18, 2006 Mr. benli 2.... No chance of that....my ammo is loaded by the finest NASA, and Firearms technicians money can buy. Cases are meticulously, scrutinized by "lasers" for primer pocket concentricity, case wall thickness, amount of pressure required to seat primer is determined to be 10-15 ftlbs. any case not meeting these requirements are sent to U.S. all tools are calibrated by technicians just prior to use, so that they may be "dead balls accurate" (its an industry term). I have NEVER had a malfunction, my guns ALWAYS run, they are the flattest shooting, softest recoiling, smoothest cycling, guns ever made!!!!! And you can't have them..... REMEMBER As Always.... Yuer Ronge Link to comment Share on other sites More sharing options...
MKuhn Posted September 18, 2006 Share Posted September 18, 2006 (edited) Wild Horse Must be sabotage! Some pinko or some fureigner or some other so & so whose so jealous of the good old boys they could do any thing; even fiddle with some ones gun. But we'll flush'em out. What the hell's next? The world out there is plum full of them terrorist, not one gauld dern thing is out of harm's way. Watch your back partner. Love and enlightenment Mell Edited September 18, 2006 by MKuhn Link to comment Share on other sites More sharing options...
dogs bollux Posted September 18, 2006 Share Posted September 18, 2006 Mr. Mel..... HI!!!!! love ya missed ya!!! REMEMBER..... As Always Yuer Ronge Link to comment Share on other sites More sharing options...
John Dunn Posted September 18, 2006 Share Posted September 18, 2006 Isn't there a hydraulic method for clearing key obstructions? Set the bolt carrier in a bucket of water then smack the bolt with a mallet? Has anyone tried this? Does anyone know what I'm talking about? Link to comment Share on other sites More sharing options...
benelli2 Posted September 18, 2006 Share Posted September 18, 2006 Isn't there a hydraulic method for clearing key obstructions? Set the bolt carrier in a bucket of water then smack the bolt with a mallet? Has anyone tried this? Does anyone know what I'm talking about? Careful not to split any atoms while doing that, you may end up with a reactor or something, This isn't a throwout bearing and there are lots of other small holes that would relieve pressure, the drill worked for me when it happened Link to comment Share on other sites More sharing options...
Bryan 45 Posted September 19, 2006 Share Posted September 19, 2006 same thing happened to my brother in law's 20". It became a straight pull bolt action. Link to comment Share on other sites More sharing options...
MKuhn Posted September 22, 2006 Share Posted September 22, 2006 (edited) Mr. Canine Testacies You cannot love me; nanbla is a bad bad thing. However I am flattered, and I miss you also, I guess. May the open mine be filled Mell Kuhn PS you are very clever, yet, I do so love piling on. Edited September 22, 2006 by MKuhn Link to comment Share on other sites More sharing options...
jacobjrl76 Posted September 22, 2006 Share Posted September 22, 2006 I had the same thing happen to me oh, not less than eight times! I was shooting some ammo made in India, and have stayed away from that stuff like no other ! Frustrating when it happens though !!!! Jake Link to comment Share on other sites More sharing options...
gotm4 Posted September 23, 2006 Share Posted September 23, 2006 (edited) Ned Christiansen makes a 5.56 neck and throat reamer for ARs that have lots of trouble blowing primers. Usually this is from shooting 5.56mm ammo in a .223 or not quite 5.56mm chamber. The neck and throat reamer doesn't change headspace at all and you can use it on chrome lined barrels (the reamer just won't last as long). I did my Bushy 20" fluted 1x9 barrel on my 3 gun rifle and it removed a little metal and the rifle still shoots under 1 MOA. http://m-guns.com/tools.php about 1/2 down the page. It's $200.00 not really a good price if you don't have a lot of ARs or work on a lot of them. I did all 8 of my ARs and the only one it didn't remove much at all from was a Colt bbl and an LMT bbl. Edited September 23, 2006 by gotm4 Link to comment Share on other sites More sharing options...
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