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Old 07-07-2011, 05:13 PM   #11
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So the round that was being used was factory Remington HP's? I remember not to long ago some Ranger ammo was loaded wrong and was causing some AR's to blow up.

Glad that everyone is okay.
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Old 07-07-2011, 05:22 PM   #12
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I've heard of this happening, but never have seen any evidence of it actually happening from such a reliable source.

Thanks for posting Scubie, I know you have had a ton of folks looking at it. Is there a consensus that this was truly a one of a time issue, or perhaps a final stressor after thousands of rounds of field use? Any stress cracks that obviously expanded with the initial increase in pressure? Or just gone from flat factory to complete disaster?

Many thanks for this hands on intel. Any after action or armory inspection results would be greatly appreciated.

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Old 07-07-2011, 05:33 PM   #13
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Wow, That is a whole lot of damage. Glad the officer was not hurt.
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Old 07-07-2011, 06:32 PM   #14
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Is that due to not using the forward assist to make sure the round was chambered correctly?
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Old 07-07-2011, 07:09 PM   #15
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Quote:
Originally Posted by synical View Post
Is that due to not using the forward assist to make sure the round was chambered correctly?
No an ar15 cant fire out of battery.

Looks like the bore coulda been blocked. By either a squib or oil or even piece of a patch. Ive seen that on issue m16 where the soldier left part of the patch in the barrel.
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Old 07-07-2011, 09:30 PM   #16
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Quote:
Originally Posted by synical View Post
Is that due to not using the forward assist to make sure the round was chambered correctly?
Scubie said in the OP that it is believed the bullet somehow collapsed back into the casing. No way to be 100% sure, the evidence kaboomed.

The round could have hit the feedramp hard then chambered with a squashed bullet or maybe physical damage to the cartridge before loaded in the mag. Could have even been manufactured wrong. Probably a one time thing to that batch of ammo. Goes to show you need to glance at your ammo as you load magazines and pay attention to the bore and the report of each shot. And if you reload, zero mistakes!
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Old 07-07-2011, 09:38 PM   #17
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I guess that is a total loss. WOW!

Nice to hear the officer is alright after that explosion.
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Old 07-07-2011, 10:56 PM   #18
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Scubie, Has he contacted Remington? I have seen three of these situations in the last several months throughout the country. And you are exactly correct in your analysis. I saw one worse than this at one of the Federal Agency facilities this year. It literally blew the upper receiver into 5 separate pieces and totally ripped the Hammer Ramp on the Carrier completely off the Bolt Carrier, banana pealed the Carrier, as well as blew the Ejector and extractor off the Bolt which it also broke at the cam pin hole. I have pictures of it also if you would like to have them e-mailed. I am not knowledgeable enough to past them on this post. It was a cleaning patch in the bore. The others were the telescoping issue. Federal had one that I know of and they immediately wrote a check and replaced the officers rifle when he called them. I think some of the problem is as you know they are running their plants 24hrs. X 7days a week at full speed. Therefore some quality issues arise as to the slight case crimp that is required on the cannular of the projectile. Yours was definitely a catastrophic even in battery.
Thanks for the pics.

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Old 07-07-2011, 11:04 PM   #19
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Moral of the story for all!

If you ever have or see anyone with the bullet loose or pushed down into the casing even slightly!

******* do not shoot it! *******

*if something ever sounds funny while you are shooting!
Check for an unobstructed bore before you fire another round!

Scubies thread shows exactly what can happen!

*and you might not be as lucky as this officer!
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Old 07-08-2011, 01:01 AM   #20
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here is my close call. just 3 months ago!!

http://www.firearmstalk.com/forums/f20/grrr-ar-fail-41432/

ingrained training is hard to break. but following army training of sports almost blew my AR up. if that primer was a scootch more powerful or if i didnt crimp the living sht out of my semi auto ammo the lodged round would have been further up the tube or pushed the live round deeper in the case resulting in a massive kaboom.

nowadays i check the bore on any oddity i NEVER assume its working as intended

when i took my texas ccw course waaaay back we had to do live fire. one guy on the line had a ruger gp100 and wasnt hitting the target. first round click second boom third boom 4 5 6 boom but 0 holes all the rounds were lodged in the bore from the first squib. one reason im leary of revolvers they will continue to fire on failure. he was just lucky that ruger built the older gp100 like a brick shthouse
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