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Posted: 5/27/2007 9:06:24 PM EDT
| I was shooting my Bushmaster M4 today when something really strange happened. I had been shooting a while when after a firing one particular round, the BCG got stuck in the upper receiver and only partially retracted. It retracted enough to show the bolt but not enough to extract the empty, fired, casing. Pounding on the charging handle failed to retract the BCG fully. While collecting brass, I noted an empty casing with a missing primer. Naturally I thought this was fishy. So I brought the gun back home and ran a cleaning rod down down the barrel, pounding it with a rubber mallet. This was after removing the buffer tube from the upper so the BCG could shoot out the back. After heavy poudning the BCG flew out of the upper and onto the ground, along with a deformed, curved, primer that had been wedged between the BCG and upper. I have never heard of a primer dislodging from a casing and getting wedged in between the BCG and upper. I have shot thousands of rounds through the rifle and this is the biggest issue I have ever had. The ammo was Q3131A which has always been great for me, and I know most others. I guess it was just a freak incident. |
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The very same thing happened to me at the range yesterday, shooting 62 gr. Prvi Partizan brass FMJ in a Colt 6520. Because there had been a partial extraction, I initially couldn't open the receiver, but after failing to open the bolt I managed to push it closed and open the gun up, allowing me to work the bolt open. I recovered a large piece of primer debris with a clear FP indentation. Not 30 minutes later the guy next to me had the same thing happen, shooting Wolf steel in what I believe was a Bushmaster. Since he couldn't open the action come the cease fire, a couple of Range Officers came over and hooked the charging handle on a bench and pounded on the butt stock. I've had primer debris freeze the bolt forward in both of my SKSs also, and I think the only thing you can do is, as gently as possible, force the action open. With the SKSs it happened with a live round chambered, so I removed the trigger group before whackin' on them. |
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What's with all these blown primers? Our SWAT team is having the same issue with WCC ammo, I saw a guy at the range a few weeks ago have the same problem with some .308 Black Hill red box, and I have seen more threads about blown primers. In fact, some of the range pick up brass I have scored lately had blown/missing primers. In 20+ years of reloading, and really pressing my luck with multiple firings of some of my .223 cases, I have yet to have a blown primer, I KNOW I'M DUE...  .On my last 3000 batch of .223 reloads, I had two primers fall out of the case prior to bullet seating  . These two cases were tossed in the trash immediately.I can't recall such a problem happening soo often in the past, or have I just not been paying attention....  ?
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