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9/22/2017 12:11:25 AM
Posted: 6/24/2003 5:15:05 PM EDT
Is anyone having failure to extract with this ammo? I am using it in my DIY AR15. Bushmaster upper on a Olymic lower. Thought it was the magazines but it didnt matter which ones I used. Or could it be a broken extractor?
Thanks
Rick
Link Posted: 6/24/2003 7:53:15 PM EDT
The only problem I have with it is the price. [;)] You may want to try posting a better details of the problem in the troubleshooting section.
Link Posted: 6/25/2003 5:35:56 AM EDT
RW- My brother and I ran 200 rounds each through our cherry rifles without a hickup. His is a J&T M4 on an Olympic pre-ban lower. Mine is a J&T 16" CAR on a EA lower. Other than the fireballs coming out of my barrel (no flash hider) I didn't have an issue with the 31A. Are you able to cycle other ammo without issue? -John
Link Posted: 6/25/2003 6:13:14 AM EDT
What barrel? Chrome lined Bushmaster barrel (B MP 5.56 NATO 1/9?) -- Chuck
Link Posted: 6/25/2003 10:10:53 AM EDT
It seemed to cycle Remington yellow box ammo fine. I am thinking it maybe just my extractor. I will order a new one and go from there. Thanks guys. Rick
Link Posted: 6/25/2003 9:54:22 PM EDT
It sounds like you have a .223 SAAMI spec chamber instead of a mil-spec chamber. The mil-spec Q3131A produces more pressure than UMC (it's about 200 fps faster) and in a tighter chamber, this often leads to extraction problems. Stick to commercial spec ammo such as the UMC, Federal AE, PMC, etc and avoid military spec loads such as Q3131A or XM193. Also avoid military surplus. If this helps you will know what the problem was. If it doesn't, have your rifle serviced by a competent gunsmith. -Charging Handle
Link Posted: 6/26/2003 1:45:46 AM EDT
Originally Posted By Charging_Handle: It sounds like you have a .223 SAAMI spec chamber instead of a mil-spec chamber. The mil-spec Q3131A produces more pressure than UMC (it's about 200 fps faster) and in a tighter chamber, this often leads to extraction problems. Stick to commercial spec ammo such as the UMC, Federal AE, PMC, etc and avoid military spec loads such as Q3131A or XM193. Also avoid military surplus. If this helps you will know what the problem was. If it doesn't, have your rifle serviced by a competent gunsmith. -Charging Handle
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Bushmaster barrels have milspec 5.56 chambers
Link Posted: 6/26/2003 3:06:08 AM EDT
[Last Edit: 6/26/2003 3:07:52 AM EDT by Charging_Handle]
Originally Posted By Raptor22: Bushmaster barrels have milspec 5.56 chambers
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Yes, that is generally true. But he did not specify what type of an upper he has. I am not familiar with his gun but it's possible it could be a match or varmint type set-up that doesn't use the mil-spec chamber like the standard models. This certainly has all the symptoms of an overpressure problem, whether is is or isn't. I thought it was worth mentioning. -Charging Handle
Link Posted: 6/26/2003 6:41:20 AM EDT
I had 2 duds in 4 cases. Never had a single dud with Wolf. A little too expensive for me too.
Link Posted: 6/26/2003 7:11:31 AM EDT
My department goes through about 30,000 rounds of the stuff per year. Since we switched form Q3131 to Q3131A, we've had zero ammo problems in our 18 various Colt and Bushmaster AR's. I bet my life on the stuff working, everyday.
Link Posted: 6/26/2003 12:03:12 PM EDT
My barrel has written on it: BMP 5.56 NATO 1/9 HBAR It maybe just a broken extractor. Rick
Link Posted: 6/26/2003 1:39:13 PM EDT
Try a new extractor spring (Wolff) or even use a D-fender. -Zmeja
Link Posted: 6/26/2003 7:05:20 PM EDT
Can't speak directly to the 3131A but, I had some 3131 that would fail to extract about one in twenty. Chrono'd the stuff and showed a high-to-low variation of 150fps! You could always tell which one was going to fte because of the big recoil and muzzle report of the offending round. And yes, the chamber is 5.56, not .223. And yes, the gun runs great on virtually everything else I've fed it. I sent a batch back to Winchester and they told me it was just fine. End of my relationship with Winchester.
Link Posted: 6/26/2003 7:29:11 PM EDT
I am assuming that you have cleaned the gun properly?
Link Posted: 6/26/2003 8:08:13 PM EDT
Originally Posted By SailorDude: Can't speak directly to the 3131A but, I had some 3131 that would fail to extract about one in twenty. Chrono'd the stuff and showed a high-to-low variation of 150fps! You could always tell which one was going to fte because of the big recoil and muzzle report of the offending round. And yes, the chamber is 5.56, not .223. And yes, the gun runs great on virtually everything else I've fed it. I sent a batch back to Winchester and they told me it was just fine. End of my relationship with Winchester.
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The Q3131 Winchester had some problems back in 1999 with several lots. Most of these problems seemed to be issues related to overpressures, as some of these rounds were loaded much hotter than mil-specs! I wish I still had the lot numbers but I can't find them. You may have some of this ammo. The Q3131A is the Winchester offering that has been around the past 2 or 3 years. I haven't seen any new Q3131 since 1999. FWIW, the Q3131A isn't exactly Winchester ammo. While it is sold under that label, it is made under contract for Winchester by Israel's IMI. It is generally very good ammo. -Charging Handle
Link Posted: 6/27/2003 11:20:28 AM EDT
I have different lots of the 1999 Q3131 and so far never had any pressure problems Flatten primmers!
Link Posted: 6/28/2003 11:38:19 AM EDT
Shurnuff. My batch is 1999. Thanks for the info, CH.
Link Posted: 6/28/2003 2:55:02 PM EDT
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