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Thread: Dented case necks ...
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16 May 2013, 07:10 #1Member
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Dented case necks ...
I have been shooting a 16" Noveske 300 AAC. 19-20 gr H110 and a 110 gr bullet. Runs like a top but my case necks are consistently dented on one side. I think this is an action spring or buffer issue? I am running a standard carbine spring and buffer. Please advise.
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16 May 2013, 09:47 #2
This happens on all of my various 300BLK uppers as well, regardless of what buffer I use.
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16 May 2013, 10:12 #3Member
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Good - then I won't change anything ... this 300 upper has been a great experience so far, unlike my last one.
I just need to find a quantity of plinker bullets.
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16 May 2013, 10:14 #4
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16 May 2013, 16:38 #5
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16 May 2013, 18:13 #6Member
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I Am currently shooting a 16" Noveske carbine gas with a 13.5" NSR and a Leupold 1.25-4. My first one was a CMMG that was problematic but bolt related. We have been hunting hogs but not much luck just yet. Hand loads of a 110 gr Hornady V-max and 110 gr Barnes. Starting to wonder if a 30 carbine bullet would feed, seems to be only lightweight 30 cal available.
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21 April 2014, 17:40 #7Member
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This is completely normal. The 300blk case when ejected does a 180 can causes it to hit the deflector on the neck. The 5.5.6 being longer does not do enough rotation and shouldn't have this happen.
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7 May 2014, 08:38 #8
Yep, my 16" noveske pistol length does it too. I'm running a Wolff XP spring and spikes t2 buffer.
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18 September 2014, 17:55 #9New Member
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New to 300 blk and this answered all my questions.
8.5" with a KX3. JP Captured Spring.
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19 September 2014, 14:29 #10
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19 September 2014, 19:48 #11New Member
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Same here....all dented. I was having an issue with crushed cases but I was running a NiB bcg. After I put a regular one in there, no more crushed cases
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20 September 2014, 05:44 #12
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22 September 2014, 19:25 #13New Member
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I've heard folks say putting some felt or a rubber pad on your brass deflector will help but haven't verified it yet as I haven't shot my blackout upper since. I can verify that it's from the rounds hitting it though as Ive watched it happen. The case flips much quicker than the 5.56 cases and what would be a ding on them is a dented mouth on the .300.
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22 September 2014, 19:38 #14
It must be just the right length, my .277 WLV cases are just like the BLK basically just a tad longer and they don't ding at all from what I can tell.
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22 September 2014, 20:52 #15
Just out of curiosity for those of with the .300 blackouts, wouldn't those dented cases be a problem to reload? I want to build one in .300 blackout as a pistol but I'd sure hate to not be able to reload the cases.