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The Range
Rifle & Shotgun Discussion
Hesitant AR15
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<blockquote data-quote="aviator41" data-source="post: 2276000" data-attributes="member: 30309"><p>Shooting a very basic DPMS upper with reloaded ammo. Ammo is 62gr with a 23.8 grain charge of BL-C(2). This ammo has performed very well is several other AR's this weekend, so I think I have a touble child upper.</p><p></p><p>At various round count (1st, 5th, 27th) on both Magpul Gen 2's and Isreali steel magazines the bolt ejects the spent brass normally but the carrier sort of pauses in the fully retracted position (i.e. it's got the buffer all the way compressed) a slight tilt of the rifle will cause the bolt to slam home and the gun is fireable. You can then go two or three rounds and it happens again.</p><p></p><p>It's really annoying. This is my favorite rifle, it goes with me everywhere on the property. </p><p></p><p>Any idea what could be causing this? round count is just of 600. I've never fired commercial ammo through it, don't really have a want to do that, but could if needed. The rifle is always cleaned after firing, and I keep the BCG lightly oiled. I haven't done any work the the ramps or any other part - perhaps something needs polished? Wear on the BCG looks exactly like the wear are my more expensive platforms. this upper has been doing this regardless of what lower it's on.</p></blockquote><p></p>
[QUOTE="aviator41, post: 2276000, member: 30309"] Shooting a very basic DPMS upper with reloaded ammo. Ammo is 62gr with a 23.8 grain charge of BL-C(2). This ammo has performed very well is several other AR's this weekend, so I think I have a touble child upper. At various round count (1st, 5th, 27th) on both Magpul Gen 2's and Isreali steel magazines the bolt ejects the spent brass normally but the carrier sort of pauses in the fully retracted position (i.e. it's got the buffer all the way compressed) a slight tilt of the rifle will cause the bolt to slam home and the gun is fireable. You can then go two or three rounds and it happens again. It's really annoying. This is my favorite rifle, it goes with me everywhere on the property. Any idea what could be causing this? round count is just of 600. I've never fired commercial ammo through it, don't really have a want to do that, but could if needed. The rifle is always cleaned after firing, and I keep the BCG lightly oiled. I haven't done any work the the ramps or any other part - perhaps something needs polished? Wear on the BCG looks exactly like the wear are my more expensive platforms. this upper has been doing this regardless of what lower it's on. [/QUOTE]
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