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8/16/2009 12:46:10 PM EDT
I just tried a new CMMG upper and had a stuck case in the chamber which ended a shooting session.  It was a Wolf 62 gr black box cartridge.  Anyone else have similar probs?  The rim of the case was ripped by the extractor.  Always bring a cleaning rod!

Anything I can do to minimize the chances of similar failures in the future?

Notice the point of the next bullet wedged itself under the stuck case - AAGH!

8/16/2009 1:05:05 PM EDT
[#1]
Proper cleaning and lubing before the first session is always a nice thing to do to help prevent issues.  Shooting so half way decent ammo to start off with is also not a bad idea and leave the Wolf at home until you have at least a couple hundred rounds down the pipe.
8/16/2009 1:12:25 PM EDT
[#2]
Congratulations on voiding your warranty.

8/17/2009 5:12:48 PM EDT
[#3]
I did clean and lube, but maybe needed to clean and lube more vigorously?

I do hope it's an ammo issue, though I read many threads boasting how the writer's AR used Wolf ammo without probs.

I did not get ANY warranty document with my upper, and never imagined Wolf ammo voids the warranty.  Nothing broke anyway except the cartridge rim, and I am not returning an upper for one incident of a stuck case.  I will check the website for warranty info and any break-in advice.  

I did not expect such a finnicky piece of equipment.

Any useful advice?  Just shoot a couple of hundred rounds of brass cased ammo?
8/17/2009 5:25:17 PM EDT
[#4]
Congratulations on voiding your warranty.


Found it!  You're right, it does void the warranty, though the info was a bit hidden.  That is weak!

Any brands that are OK with Wolf/steel cased ammo?
8/17/2009 9:07:48 PM EDT
[#5]
Quoted:
Congratulations on voiding your warranty.


Found it!  You're right, it does void the warranty, though the info was a bit hidden.  That is weak!

Any brands that are OK with Wolf/steel cased ammo?


Just don't tell them you used wolf ammo, how are they going to know.
8/22/2009 3:38:17 PM EDT
[#6]
OK, a bit of follow-up.  I went to the range yesterday and tried 40 rounds - brass cased - through the rifle with no failures of any kind...that's what I'm talking about!   Any more break-in advice?
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