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Ar-15 bolt failure
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 Location: Bremerton area Joined: Tue Apr 5, 2011 Posts: 13 
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after shooting ar-15s for 23years i finally had it happen ,a catastrofic bolt failure.luckily nothing else on the rifle looks hurt.
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| Sun Apr 10, 2011 11:40 am |
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Founding Father   Location: Woodinville Joined: Fri Mar 11, 2011 Posts: 4631
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 That's no good._________________ "There's two things in life you can't take back... Bullets and words. So make sure you hit what you aim at and make sure you mean what you say." |
| Sun Apr 10, 2011 4:08 pm |
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Site Admin   Location: Renton, WA Joined: Sun Mar 13, 2011 Posts: 52068 Real Name: Steve
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Ouch. Was it an old bolt, been through many tens of thousands of rounds? Or did something weird happen?
_________________ Steve Benefactor Life Member, National Rifle Association Life Member, Second Amendment Foundation Patriot & Life Member, Gun Owners of America Life Member, Citizens Committee for the Right to Keep and Bear Arms Legal Action Supporter, Firearms Policy Coalition Member, NAGR/NFGR Please support the organizations that support all of us. Leave it cleaner than you found it. |
| Sun Apr 10, 2011 4:42 pm |
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Location: Bremerton area Joined: Tue Apr 5, 2011 Posts: 13
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the bolt was about a year old with 500 or so rounds.
this was one of the bcg that Surplus Ammo sells. the ammo was my 77g match ammo that is not overpressured. |
| Sun Apr 10, 2011 6:09 pm |
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Site Supporter  Location: some where Joined: Sun Apr 3, 2011 Posts: 923
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Damn that sucks.
 _________________ .308, Because people hide behind cars. never_to_much wrote: Yeadon You need to change your sig line to 338 because people hide behind concrete walls. |
| Sun Apr 10, 2011 6:41 pm |
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Site Admin  Location: Olympia, WA Joined: Fri Mar 11, 2011 Posts: 38311 Real Name: Dan
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AR-DON wrote: the bolt was about a year old with 500 or so rounds. this was one of the bcg that Surplus Ammo sells. the ammo was my 77g match ammo that is not overpressured. Are you planning on taking it back to SAA to see what they say about it? |
| Sun Apr 10, 2011 7:09 pm |
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Location: Bremerton area Joined: Tue Apr 5, 2011 Posts: 13
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Massivedesign wrote: AR-DON wrote: the bolt was about a year old with 500 or so rounds. this was one of the bcg that Surplus Ammo sells. the ammo was my 77g match ammo that is not overpressured. Are you planning on taking it back to SAA to see what they say about it? no ,I probably won't take it back. its over a year and its only worth $40.sh#t happens.it could be a fluke.by no means i'm trying put down anything SAA sells. i like there shop and they always treated me good. Last edited by AR-DON on Sun Apr 10, 2011 8:12 pm, edited 1 time in total. |
| Sun Apr 10, 2011 7:56 pm |
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Site Admin Location: Olympia, WA Joined: Fri Mar 11, 2011 Posts: 38311 Real Name: Dan
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They are pretty competent people in there. I was thinking at least taking it in to give them a heads up. There may have been a casting issue on it etc. Just good to give them a chance to inspect when a piece of equipment that they sell failed randomly.
SAA is a great shop, and I personally do not know a single person who thinks otherwise. I am planning on outfitting my AR pistol with the same Bolt and BCG from SAA, your freak accident has not deterred that one bit. |
| Sun Apr 10, 2011 8:06 pm |
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Location: Bremerton area Joined: Tue Apr 5, 2011 Posts: 13
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i will show it to them the next time i'm down there.
but i will not take a replacement unless i pay for it. |
| Sun Apr 10, 2011 8:11 pm |
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Site Admin Location: Olympia, WA Joined: Fri Mar 11, 2011 Posts: 38311 Real Name: Dan
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bravo!
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| Sun Apr 10, 2011 8:25 pm |
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 Location: Spokane Joined: Fri Dec 2, 2016 Posts: 32
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I didn't know they had bolts that where under 70 dollars ,40 dollars for a bolt is pretty cheap , I might look that place up.
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| Sun Mar 26, 2017 8:41 am |
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Site Supporter  Location: Everson, WA Joined: Sun Jan 6, 2013 Posts: 28191 Real Name: Ace Winky
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Blowback Sunday?
2011 prices?? _________________ Why does the Penguin in Batman sound like a duck? Because the eagle sounds like a hawk. |
| Sun Mar 26, 2017 9:25 am |
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Location: Tacoma Joined: Sun Jan 29, 2017 Posts: 95 Real Name: Ben
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Hunter399 wrote: I didn't know they had bolts that where under 70 dollars ,40 dollars for a bolt is pretty cheap , I might look that place up. Just the bolt not the entire BCG you can get for around $40 |
| Sun Mar 26, 2017 9:30 am |
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Site Supporter  Location: Tacoma Joined: Sat May 4, 2013 Posts: 6217
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Guessing a fatigue failure originating at a stress riser (sharp corner, material flaw, machining flaw, preexisting crack). Hard to tell at 1x magnification. Another possibility is a poor fit between the bolt and chamber, causing the bolt to be hammered each time it cycles. Buy me an SEM and I would be able to tell you for sure.
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| Sun Mar 26, 2017 9:35 am |
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Site Supporter  Location: Tenino Joined: Fri Apr 15, 2011 Posts: 4396
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I have been seeing more and more reports of the cheaper, carpenter steel bolts doing exactly this. I bought one awhile back before I had heard of the problems so it will be going away, not even gonna try it.
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| Sun Mar 26, 2017 11:15 am |
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