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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
AR-10 Bolt head issue
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<blockquote data-quote="Winkfish" data-source="post: 2608192" data-attributes="member: 98068"><p>Good Morning to all your AR-10 folks. </p><p></p><p>My buddy just got a new AR-10 and we were shooting it this weekend and noticed that the bolt head was staying forward in some instances and then when the bolt locked back on the last round it was in the forward position. So when he would insert a new magazine it would fail to feed correctly. If you pulled the charging handle all the way back and released it when this would occur it would load the round correctly and continue to fire the rounds in the magazine without issue.</p><p></p><p>Here are the spec on the rifle:</p><p>Aero enhanced upper and lower.</p><p>Aero bolt carrier group</p><p>JP silent capture spring for ar-10</p><p>A-2 length buffer tube</p><p>Triggertech diamond trigger</p><p>24" ballistic advantage barrel</p><p>chambered in 6.5 creed</p><p></p><p>I put the initial 60 rounds down the gun to get it broken in and zeroed for him. Gun ran fine for me. I ran the bolt carrier very very wet during this period.</p><p></p><p>This past weekend he tried to shoot it at a PRS match and had several failure to feed due to this. The event got rained out so I brought the rifle home, stripped it, cleaned it and really lubed up the bolt and carrier and I am attempting to diagnose what is going on.</p><p></p><p>What I was noticing is if I pulled the bolt back, released it and allowed it to lockup on an empty chamber, don't pull the trigger, then pulled it back again, the bolt head would hang up and the bolt catch would hit the bolt body and not the head. If I would have had a magazine in with rounds it would have produced a failure to feed upon releasing the bolt.</p><p></p><p>If I pull the trigger on the when the bolt is in battery it will then lock back the bolt it would function as expected and produce no failures to feed. </p><p></p><p>If I try and manipulate the bolt head in the carrier while it is out of the upper, it is fairly stiff when compared to a different bolt carrier I have on a 308 AR-10. </p><p></p><p>With the gun only having about a hundred rounds on it, does it need a longer break in, better lubrication something else going on?</p><p></p><p>Attached is an image of what it is doing when it produces a failure. Any thoughts and guidance would be greatly appreciated. Thank you</p></blockquote><p></p>
[QUOTE="Winkfish, post: 2608192, member: 98068"] Good Morning to all your AR-10 folks. My buddy just got a new AR-10 and we were shooting it this weekend and noticed that the bolt head was staying forward in some instances and then when the bolt locked back on the last round it was in the forward position. So when he would insert a new magazine it would fail to feed correctly. If you pulled the charging handle all the way back and released it when this would occur it would load the round correctly and continue to fire the rounds in the magazine without issue. Here are the spec on the rifle: Aero enhanced upper and lower. Aero bolt carrier group JP silent capture spring for ar-10 A-2 length buffer tube Triggertech diamond trigger 24" ballistic advantage barrel chambered in 6.5 creed I put the initial 60 rounds down the gun to get it broken in and zeroed for him. Gun ran fine for me. I ran the bolt carrier very very wet during this period. This past weekend he tried to shoot it at a PRS match and had several failure to feed due to this. The event got rained out so I brought the rifle home, stripped it, cleaned it and really lubed up the bolt and carrier and I am attempting to diagnose what is going on. What I was noticing is if I pulled the bolt back, released it and allowed it to lockup on an empty chamber, don't pull the trigger, then pulled it back again, the bolt head would hang up and the bolt catch would hit the bolt body and not the head. If I would have had a magazine in with rounds it would have produced a failure to feed upon releasing the bolt. If I pull the trigger on the when the bolt is in battery it will then lock back the bolt it would function as expected and produce no failures to feed. If I try and manipulate the bolt head in the carrier while it is out of the upper, it is fairly stiff when compared to a different bolt carrier I have on a 308 AR-10. With the gun only having about a hundred rounds on it, does it need a longer break in, better lubrication something else going on? Attached is an image of what it is doing when it produces a failure. Any thoughts and guidance would be greatly appreciated. Thank you [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
AR-10 Bolt head issue
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