S&W M&P-15 Exploded - Page 7

Sig 210 · July 4th, 2009, 01:53 PM

Beware of recently made LC 5.56mm ammo that is being sold on the civilian market. In over 40 years I never found a significant difference in cartridge case dimensions between .223 ammo and military 5.56mm ammo.

Yesterday I measured some recently acquired ammo sold by Federal as XM 193. I was told by a distributor that this stuff is military reject. Every case that I measured had a long neck. Those case necks were .004-.037 longer than military spec. Those case necks are also longer than the necks of 5.56mm ammo made during the 60s and 70s.

A case neck that is .004 longer than spec would most likely not be a big deal. A cartridge with a case neck that is .037 longer than spec could could see the case mouth jammed hard into the throat. In this event, a serious spike in pressure could result.

CE680 · July 8th, 2009, 10:19 AM

I sure hope SW resolves this matter sooner than they did with Puncho. I was really disappointed as to how they handled him.

One forum member jumped all over me on the other related M&P 15T failure thread because i said "That is BS that S&W did not step to the plate on this one." Maybe he will get the picture now.

snowdoctor · July 8th, 2009, 02:34 PM

SW has a life time warranty on the MP15's...

lee275 · July 8th, 2009, 11:09 PM

Quote:

Originally Posted by CE680

I sure hope SW resolves this matter sooner than they did with Puncho. I was really disappointed as to how they handled him.

One forum member jumped all over me on the other related M&P 15T failure thread because i said "That is BS that S&W did not step to the plate on this one." Maybe he will get the picture now.

I hope they are quick about it too.
But honestly, when i finally got a hold of someone on Monday, before i told him the damage he was already blaming the ammo. I said "are you going to let me tell you what broke before you blame the ammo?"

I'm going to send a little note along with the rifle letting them know i am a Veteran who saved his money to buy one of there fine rifles only to have it explode after firing the 27th round. Hopefully playing the V card will get me a decent response.

Oh, Took more pics of the rifle.. posted to my FLIKR
Flickr: bourne275's Photostream

D

puncho · July 13th, 2009, 09:25 PM

Quote:

Originally Posted by lee275

I hope they are quick about it too.
But honestly, when i finally got a hold of someone on Monday, before i told him the damage he was already blaming the ammo. I said "are you going to let me tell you what broke before you blame the ammo?"

Did you get the name of the person you spoke with?

lee275 · July 27th, 2009, 12:37 PM

Just an update. Rifle shipped last Tuesday. Waiting for results.

cuban11182 · July 27th, 2009, 03:48 PM

Hopefully everything works out. It is nice to be able to put in the Veteran of a Foreign War. I haven't had the need yet.

lee275 · July 31st, 2009, 01:05 PM

Quote:

Originally Posted by cuban11182

Hopefully everything works out. It is nice to be able to put in the Veteran of a Foreign War. I haven't had the need yet.

Yeah i hate playing the Vet card but i figure i paid $1100 and waited for 6 months to get the rifle, why not.

dukalmighty · July 31st, 2009, 01:21 PM

I saw an M16 A1 do that in 1979,but it had a light load that lodged a round in the barrel on the rifle range,range instructor ejected the spent case without checking for an obstruction and chambered another round,then he told the guy go ahead and kaboom,the guy got away with a few powder burns,but the whole upper was trashed with the BCG literally bowed out splitting the upper receiver

Sig226GuyNJ · August 14th, 2009, 11:24 AM

lee, any word from S&W yet? I wish I had found this thread b4 I purchased a M&P15 OR....

Puncho, hope you read this. Did they ever tell you the cause of the explosion?

July 8th, 2009, 02:34 PM	#63
snowdoctor Distinguished Member Join Date: Nov 2005 Location: MICHIGAN Posts: 1,208	SW has a life time warranty on the MP15's... __________________ ----DOC----- --people ask why I carry, and I show them this picture. I think it says it all.-- NRA Certified Instructor--many disciplines

July 31st, 2009, 01:21 PM	#69
dukalmighty VIP Member Join Date: Feb 2008 Location: texas Posts: 6,301	I saw an M16 A1 do that in 1979,but it had a light load that lodged a round in the barrel on the rifle range,range instructor ejected the spent case without checking for an obstruction and chambered another round,then he told the guy go ahead and kaboom,the guy got away with a few powder burns,but the whole upper was trashed with the BCG literally bowed out splitting the upper receiver __________________ I like Poetry,Long Walks On The Beach,And Poking Dead Things With A Stick

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July 4th, 2009, 01:53 PM	#61
Sig 210 Senior Member Join Date: Oct 2006 Location: Southwestern OK Posts: 797	Beware of recently made LC 5.56mm ammo that is being sold on the civilian market. In over 40 years I never found a significant difference in cartridge case dimensions between .223 ammo and military 5.56mm ammo. Yesterday I measured some recently acquired ammo sold by Federal as XM 193. I was told by a distributor that this stuff is military reject. Every case that I measured had a long neck. Those case necks were .004-.037 longer than military spec. Those case necks are also longer than the necks of 5.56mm ammo made during the 60s and 70s. A case neck that is .004 longer than spec would most likely not be a big deal. A cartridge with a case neck that is .037 longer than spec could could see the case mouth jammed hard into the throat. In this event, a serious spike in pressure could result.

July 8th, 2009, 10:19 AM	#62
CE680 New Member Join Date: Feb 2009 Location: Florida Posts: 3	I sure hope SW resolves this matter sooner than they did with Puncho. I was really disappointed as to how they handled him. One forum member jumped all over me on the other related M&P 15T failure thread because i said "That is BS that S&W did not step to the plate on this one." Maybe he will get the picture now.

July 27th, 2009, 12:37 PM	#66
lee275 Member Join Date: Jun 2009 Location: los angeles Posts: 33	Just an update. Rifle shipped last Tuesday. Waiting for results.

July 27th, 2009, 03:48 PM	#67
cuban11182 Member Join Date: Nov 2007 Location: Florida Posts: 423	Hopefully everything works out. It is nice to be able to put in the Veteran of a Foreign War. I haven't had the need yet.

August 14th, 2009, 11:24 AM	#70
Sig226GuyNJ Member Join Date: Aug 2009 Location: New Jersey Posts: 17	lee, any word from S&W yet? I wish I had found this thread b4 I purchased a M&P15 OR.... Puncho, hope you read this. Did they ever tell you the cause of the explosion?