Need help! AI bolt just failed/fell apart today at the range

Sniperwannabee

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  • Feb 14, 2017
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    I was shooting today and all of the sudden I couldn’t close the bolt. Pulled the bolt out and the bolts dropped out the bottom and top fell off. Any ideas
    thanks
     

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    unless you took to the AI armorers maintenance course and have the manual, I would just send it in to either Mile High or AINA

    I’ve broken the shroud or an AI before... dropped my rifle though, fell on top of the bolt handle lol
     
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    its A simple fix, not sure if I wanr to send it back if they are just going to use the same cheap bolts

    Considering this rarely happens (can’t recall seeing these sheer off without something happening) I doubt the bolts are that fragile normally.

    I’d send it in (I’m sure they won’t just send the bolts since it’s part of the firing system) and wouldn’t worry about it too much.
     
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    its A simple fix, not sure if I wanr to send it back if they are just going to use the same cheap bolts

    You should send it back. Don’t even think twice about it. Two screws worth 15 cents failed. It was probably due to overtorque, not the screw itself. Not a huge deal. Like Dthomas, I’ve never seen that happen to an AI shroud. It’s not a highly stressed part.
     
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    Exactly. Any machined piece of material can and will fail - eventually. Odd failure for sure there.

    It's really about MTBF with any of these high-end systems. Obviously there are minor failures, and there are show-stoppers.

    I've had two AI failures to date as a nearly 20 year AI owner/shooter. First, many years ago a lock ring failure in a AW308. Destroyed the bolt head and of course the action lock-ring. Repaired by AI (previous to AINA's formation) and functioned 100 percent afterwards.

    2nd, broken extractor. Easily repaired after receiving a replacement.

    Other small repairs I have made myself. Parker-hale spigot spring, butt-pad replacement, barrels, etc.
     
    Ok I’ll bite, did you have any trouble putting the safety on ?
    Do you work the safety a lot ?

    Reason I ask, that lil lever, ball and tiny spring are what control the safety.
    I’ve seen those screws work loose on 2 rifles, but it was caught when closing the bolt and feeling a slight snag when the touch the rear or action.

    if they worked out to much and your ran the bolt home I could possibly see where they might bend, but not shear.
     
    Rem and savage break everyday. An AI goes down and the poors come out the woodwork claiming they are just as good.

    The “poors” come out........

    Defensive much...... or are you just one of those morons who think their precious manufactures won’t break because of the cost?

    And for the record, it was a joke. I would not own a savage. It was a statement saying everything breaks no matter what the cost.
     
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    Ok I’ll bite, did you have any trouble putting the safety on ?
    Do you work the safety a lot ?

    Reason I ask, that lil lever, ball and tiny spring are what control the safety.
    I’ve seen those screws work loose on 2 rifles, but it was caught when closing the bolt and feeling a slight snag when the touch the rear or action.

    if they worked out to much and your ran the bolt home I could possibly see where they might bend, but not shear.

    i actually never use the safety, it did snag when the bolts dropped down and that what caused me to take the bolt out. I was confused at first because I thought it was a missfeed because the bolts dropped out from the bottom side so I couldn’t see it when I was in the prone position.
     
    The “poors” come out........

    Defensive much...... or are you just one of those morons who think their precious manufactures won’t break because of the cost?

    And for the record, it was a joke. I would not own a savage. It was a statement saying everything breaks no matter what the cost.

    @Poorboyr and @Dthomas3523

    85635B50-75C7-4E01-A68A-EB57CA9D600B.gif
     
    i actually never use the safety, it did snag when the bolts dropped down and that what caused me to take the bolt out. I was confused at first because I thought it was a missfeed because the bolts dropped out from the bottom side so I couldn’t see it when I was in the prone position.
    That’s so odd they just shear. I’ve seen them walk loose and just retorqued them. I used nail polish on the top to loctite them in.
    What kind of rifle ?
     
    You guys don’t remember but when the 2014 new models came out. I had one of the first ones from mile high. Preordered during SHOT show that year. My bolt also broke. The roll pins sheared in half and the bolt body pulled away from the bolt head still in the rifle. The whole rifle ended up going back to AI to see how I managed it but they did fix it and had it back relatively quickly. It happens.
     
    Rem and savage break everyday. An AI goes down and the poors come out the woodwork claiming they are just as good.

    Not to defend rem and Savage, as I think they are junk, but I've seen more then a few AI rifles go down in matches.

    Happens more often then most think. Not to diss AI as I think they are excellent rifles, but they are not much more bullet proof then a current well built custom rifle these days. Custom rifle components have come a long ways since the 2010 competition dynamics days...
     
    Was the gun still useable?

    You guys that has to send the whole rifle in I Hope AI paid for that. Expensive to ship that stuff

    If you have something that's a defect, they cover shipping. I had to send a bolt assembly back that had a manufacturing defect in the firing pin/shroud assembly. In their defense it was just a burr or something that would have worked itself out eventually and the bolt was still operable, and it was bought as a accessory part (SFP AXMC assembly) so it wasn't test fired or anything for them to know it didn't feel right and they emailed me a label without even having to ask. Turn around time from when I sent it out to the time I got it back was less than a week.

    Now if you were to screw an aftermarket barrel on that the headspace is jacked up on, and you fire it so much in this condition that the bolt head fails and has to be replaced as well as the lug ring in the action, you are going to be responsible for repair costs as well shipping as you should...
     
    Did you get a loaner bolt or just have an expensive paperweight lying around?

    ETA: This thread started out intriguing (I've been one of the fortunates to have an AI go down at a class). It had its ups and downs, stalled, then the revival after six months?? I'm now filled with suspense and looking for a surprise twist at the end.
     
    That’s so odd they just shear. I’ve seen them walk loose and just retorqued them. I used nail polish on the top to loctite them in.
    What kind of rifle ?

    I've had it happen. The screws come loose, back out and if you run the bolt they will sheer off. Same with the screw that holds in the firing pin. Blue locktite is the answer.
     
    I've had it happen. The screws come loose, back out and if you run the bolt they will sheer off. Same with the screw that holds in the firing pin. Blue locktite is the answer.
    You would think that would be done at the factory.

    Lol. Bond the action to the stock. But don’t loctite screws that will back off and make the gun dead in the water
     
    Curious how this could happen. Makes me wonder about the pressure from pierced primers. Not implying that's the case here, but that's a lot of pressure quickly coming back into the bolt. Over time, I could see it weakening or breaking sacrifice parts to keep the gasses out of the shooters face. That said, I assume the AX bolts are vented out the ejection port?
     
    You would think that would be done at the factory.

    Lol. Bond the action to the stock. But don’t loctite screws that will back off and make the gun dead in the water

    Must be a reason they don't do that but I see it as my responsibility to make sure everything is locked down and torqued correctly. Basic maintenance vs none is usually the answer for everything we play with.
     
    You would think that would be done at the factory.

    Lol. Bond the action to the stock. But don’t loctite screws that will back off and make the gun dead in the water

    Actions are bonded to chassis to "bed" them to fill voids and increase accuracy just like customs are bedded. Those screws don't back off unless they're messed with... and both screws at the same time... what are the odds of that? Also not sure how those bolts could shear at the very top of the shroud instead of shearing at the head if this were the case.

    I'd put my money on the screws being severely overtightened and they were finally stressed enough from firing to fail. That also explains how they could both fail at the same time.

    No matter how robust you make a gun, you can't make it fool proof. Over tighten shit and it's gonna break. Period.