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10/20/2017 1:01:18 AM
9/22/2017 12:11:25 AM
Posted: 9/23/2005 2:09:58 PM EDT
Got a bit of a problem here with my AR. I'm pretty new to the rifle world so please bare with me It's a RRA 16in. I'm using USGI mags with the green followers. It seems that about every other round will do this. Pull the trigger the shot will go off, the spent case is extracted no problem. When the next roung begins to go into battery, the nose of the bullet gets pushed up into the top of the chamber causing the back of the cartridge to hang out of the extraction port (Like a sideways stove pipe, but with a live round) the bolt tries to slam home and dents the casing of the round. I drop the mag, clear out the damaged round and hit the bolt release...I pull the trigger and we start all over....any ideas???
Link Posted: 9/23/2005 4:46:04 PM EDT
Does this happen with all your mags?
Link Posted: 9/23/2005 5:53:57 PM EDT
[Last Edit: 9/23/2005 11:55:30 PM EDT by Dano523]
Short stoke test It, and before you ask, look in the tacked section under FTF/FTE.
Link Posted: 9/23/2005 6:50:24 PM EDT
look for short stroke test.

the "short short" test is for advanced users only.

Link Posted: 9/25/2005 6:26:01 PM EDT
So I started going through the trouble shooting checklist before I did a short stroke test and found something intresting. The one of my three gas rings has a gap that is about 3 times the size of the other gaps. I assume this is the cause of the short stroke...is that correct? I ordered a new set of rings to replace the broken one. I will do a short stroke test after replacing the bad part. Thanks
Link Posted: 9/25/2005 10:22:56 PM EDT
So I assume it failed the short stroke test?

I don't think that a slightly larger gap then normal in one gas ring would cause a short stroke.

I can line up all 3 rings in my bolt and mine runs fine that way.

did it fail the SS test??
Link Posted: 9/25/2005 11:00:11 PM EDT
[Last Edit: 9/25/2005 11:00:41 PM EDT by Tweak]
Link Posted: 9/26/2005 6:00:15 AM EDT
I never performed the short stroke test because I thought I had a bad part. I wanted to make sure all my parts were working properly so I could prevent damage to the rifle. However, now that I see it's not that big of a deal I'll perform a short stroke test the next time I can get to the range. Thanks a lot for everyone's help. I'll keep you up to date!
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