openclassterror Posted May 6, 2015 Share Posted May 6, 2015 I have seen the primer in the gas key happen once- to a student in a defensive rifle course. Quickly became an amateur armorer's course, and I stepped in when I saw the Leathermans come out . He had been shooting xm193s, and with the pinned and welded 14.5" barrel, fireball was significant. A large amount of his brass showed pressure signs, and 3 primers were missing besides the one that ended up in the gas key. Always a good idea to look at the bras coming out of your gun occasionally to see if something funky is happening. I have seen at least 5 rifles quit during a stage in major matches from primers bouncing around inside and locking up the trigger mechanism. Not good! Link to comment Share on other sites More sharing options...
TitoR Posted May 12, 2015 Share Posted May 12, 2015 accu-wedge is a great way to turn it back into a single shot. superfluous at best to the ar platform and in my experience and opinion, harmful to it. What's wrong with the accuwedge? Why would it turn rifle into a single shot? Tito Link to comment Share on other sites More sharing options...
bmiller Posted May 12, 2015 Share Posted May 12, 2015 Happened to me. Not fun at all. Link to comment Share on other sites More sharing options...
gerritm Posted May 12, 2015 Share Posted May 12, 2015 Happened to me. Not fun at all. Me too using XM193 new Federal rounds. Ended up in the trigger jamming it. gerritm Link to comment Share on other sites More sharing options...
surfmaster Posted May 12, 2015 Share Posted May 12, 2015 Live primers falling out of cases of unfired rounds suck, too. I reamed primer pockets too aggressively during case preparation, leading to too lose primer pockets. I would fire a round and the following round's live primer would fall out of the case, causing a dummy round. It's not as bad as a primer going into the gas key, though. Lesson learned. Link to comment Share on other sites More sharing options...
Steve RA Posted May 12, 2015 Share Posted May 12, 2015 I'd also like to hear the problem with the Accuwedge ??? Link to comment Share on other sites More sharing options...
kurtm Posted May 13, 2015 Share Posted May 13, 2015 (edited) So would I, and I have run them in a metric ton of rifles.....or at least 400-500 pounds worth I have even gone so far as bedding the upper to the lower with accu-steel and as long as the bolt carrier doesn't hit the stock tube or drag its all good. I run an Accu-Wedge in both my practice rifles, and I have won a bunch of stuff over seas with my practice rifle....... do tell!!! Edited May 13, 2015 by kurtm Link to comment Share on other sites More sharing options...
openclassterror Posted May 13, 2015 Share Posted May 13, 2015 I too have installed more than a few. I have not found that they have a significant effect on accuracy, at least not on otherwise mil-type carbines, but they do definitely remove the rattle of poorly fitted receivers. I have never had one cause problems, but then I haven't tried to salvage any receiver sets that were mismatched enough to allow the carrier to drag in the buffer tube, either. It is a little off-topic in this thread, but looking forward to an explanation! Link to comment Share on other sites More sharing options...
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