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The Range
Rifle & Shotgun Discussion
DPMS AR-10 problem
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<blockquote data-quote="D V US" data-source="post: 2831627" data-attributes="member: 34558"><p>Ok, I went to the range and ran a mag of factory 150 gr rounds through the rifle. At first everything was fine and then after ten rounds it started to do a little ejector swiping again but nothing like before and didn't damage the brass much at all. Finished the mag with no problems. Loaded a mag of the ammo that started the problem (ALL in military brass). First shot, perfect. Second shot same, third shot showed significant swipe and fourth ejected the primer. Talked with my reloading guru and showed him the cases. He pretty much came up with the same thing I did, that the load itself is good with no pressure signs on the primers, but the heavier bullet is just enough to overgas the action and open it too early.</p></blockquote><p></p>
[QUOTE="D V US, post: 2831627, member: 34558"] Ok, I went to the range and ran a mag of factory 150 gr rounds through the rifle. At first everything was fine and then after ten rounds it started to do a little ejector swiping again but nothing like before and didn't damage the brass much at all. Finished the mag with no problems. Loaded a mag of the ammo that started the problem (ALL in military brass). First shot, perfect. Second shot same, third shot showed significant swipe and fourth ejected the primer. Talked with my reloading guru and showed him the cases. He pretty much came up with the same thing I did, that the load itself is good with no pressure signs on the primers, but the heavier bullet is just enough to overgas the action and open it too early. [/QUOTE]
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