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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
AR-15 failing to feed and gouging bullets, help!
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<blockquote data-quote="rpol98" data-source="post: 3003799" data-attributes="member: 122310"><p>can you find out what mags the previous owner used?</p><p></p><p>it looks like the middle "fin" of the barrel extension feed ramp is causing those gouges, judging from the 2nd pic. I usually smooth that out, knock off some of the sharpness, and polish, <strong><em>before</em></strong> I install the barrel in the receiver on my builds to avert exactly that kind of symptom. But the bullet tip should be riding up the trough to the left or right of that fin, not hitting the divider fin dead-on.</p><p></p><p>is the barrel clocked nicely? i.e. the barrel extension M4 feed ramps lining up with the receiver M4 feed ramps? or are the off a smidgeon?</p><p></p><p>I've found PMAGS in AR-15's with plain-Jane Green Tip to be ho-hum ultra reliable. 25% feed failures is unusual.</p></blockquote><p></p>
[QUOTE="rpol98, post: 3003799, member: 122310"] can you find out what mags the previous owner used? it looks like the middle "fin" of the barrel extension feed ramp is causing those gouges, judging from the 2nd pic. I usually smooth that out, knock off some of the sharpness, and polish, [B][I]before[/I][/B] I install the barrel in the receiver on my builds to avert exactly that kind of symptom. But the bullet tip should be riding up the trough to the left or right of that fin, not hitting the divider fin dead-on. is the barrel clocked nicely? i.e. the barrel extension M4 feed ramps lining up with the receiver M4 feed ramps? or are the off a smidgeon? I've found PMAGS in AR-15's with plain-Jane Green Tip to be ho-hum ultra reliable. 25% feed failures is unusual. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
AR-15 failing to feed and gouging bullets, help!
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