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ar-15 exploded

This is a discussion on ar-15 exploded within the M16 AR15 forums, part of the Rifle Forum category; Originally Posted by WaM14gunner What 7mm was the rifle chambered for that 7mm Mauser was tight in it? I bet it was a REM 7MM-08 ...


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Old January 7th, 2017, 12:24 PM   #16
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Originally Posted by WaM14gunner View Post
What 7mm was the rifle chambered for that 7mm Mauser was tight in it?
I bet it was a REM 7MM-08 or 7 MM Mag. I don't think a 7MM STW would get in there at all.

I know for a fact a 30-30 Winchester won't fit in a 7MM Mauser. My BIL tried it LMHO.

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Old January 7th, 2017, 12:38 PM   #17
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Saw that happen to a M1 Garnd once, after the fact the gentleman discovered he had FORGOT to change powders after loading 40 S&W. He was dropping a charge of bullseye into 30/06 cartridges. Only took one shot. He had a few stitches but was ok.
Some time ago on another forum a poster thought to ask why his brass was overflowing with 4895 when he was trying to use a load well within published limits. Seems he was a new reloader and had bought all his stuff, including powder, primers and bullets, from another shooter. After seeing pics of his powder, we reached the conclusion that his "buddy" had filled a 4895 can with Red Dot and sold it to him. I hate to imagine what would have happened if he had just said "Oh well...", and packed the powder in there.

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Old January 7th, 2017, 01:13 PM   #18
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AR lower is not a stressed part. Looks like the bolt failed. I'd bet that rifle would have blown up with an aluminum lower as well, although the lower might have contained the blast better than the plastic one did(or not). I remember seeing the pictures of the M1A receiver that failed, but was contained because it war wrapped in the Sage chassis.

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Old January 7th, 2017, 02:00 PM   #19
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The AR has always always been and will always be a mattel toy.

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Old January 7th, 2017, 02:35 PM   #20
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Not that I'm a fan of polymer AR receivers, but, the article headline is deceivingly blaming the lower. Looks like a serious ammo fail or out of battery, perhaps a reload?
Agreed,
It looks like a Steel cased ammo failure to me also. I can't blame the gun on this yet….Looks like the case is missing the lower web.

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Old January 7th, 2017, 03:17 PM   #21
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Doubt this is a out of battery experience.

If you know the AR design a whole lot would have to go wrong to cause an out of battery firing.

That was probably ammo related or barrel obstruction.

An aluminum lower would not have fared much better.

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Old January 7th, 2017, 04:15 PM   #22
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There are a few Bushmaster Carbon 15 critters in the herd. I don't shoot them much, but they are still in one piece.


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Old January 7th, 2017, 05:12 PM   #23
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The AR has always always been and will always be a mattel toy.
It was my issued rifle for 17 years of service, and never failed me. In my opinion, and based on actual usage, it is a fine weapon. And your statement is based on what ???

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Old January 7th, 2017, 05:19 PM   #24
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'Damnant quod non intelligunt'

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Old January 7th, 2017, 06:08 PM   #25
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I have one ATI lower with a bushmaster upper I made as a slide fire rental gun.
Has around 7000 rounds thru it and no damage to the lower at all.
No buffer spring issues,no trigger pin hole problems.
Take down pins are still tight perfect upper lower fit as well.
It has been run hard and not one issue, so far all the so called stress points on polymer lowers you hear about online have no wear and are in perfect condition.
Its been a great lower so far.
If you get a squib or barrel obstruction while firing a cast or forged metal lower can fail too.

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Old January 7th, 2017, 06:12 PM   #26
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WaM14gunner, late 80's M77 Ruger 7 MM mag, rifle looked like he kept it stored behind his truck seat. 7mm STW, have 1, 8mm casing necked downed to 284

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Old January 7th, 2017, 06:46 PM   #27
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I was at a 3 gun match about five or six years ago and watched my buddy blow up an AR in the exact same manner. Drove the bolt back into the carrier like a splitting wedge through a piece of wood, split the upper receiver in half! The lower just bowed out a little on each side and the loading tower on the hundred round drum mag that he was using completely disintegrated. It was the one stage of the day we did not record because it was just a boring long-range stage with no movement. It let out a giant puff of smoke and everyone including the range officers were going nuts because no one knew what happened for a few seconds. My friend was a little shaken but uninjured other than a couple of powder burns on his arm. He was firing Factory Privi 75 grain ammunition. The bullet only traveled about half an inch into the bore, the case completely disintegrated. He sent the entire thing back to Bushmaster and they sent him a brand new rifle.

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Old January 7th, 2017, 08:22 PM   #28
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Originally Posted by yoteman View Post
WaM14gunner, late 80's M77 Ruger 7 MM mag, rifle looked like he kept it stored behind his truck seat. 7mm STW, have 1, 8mm Remington Magnum casing necked downed to 284
There; fixed it for you.

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Old January 8th, 2017, 04:22 AM   #29
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I was at a 3 gun match about five or six years ago and watched my buddy blow up an AR in the exact same manner. Drove the bolt back into the carrier like a splitting wedge through a piece of wood, split the upper receiver in half! The lower just bowed out a little on each side and the loading tower on the hundred round drum mag that he was using completely disintegrated. It was the one stage of the day we did not record because it was just a boring long-range stage with no movement. It let out a giant puff of smoke and everyone including the range officers were going nuts because no one knew what happened for a few seconds. My friend was a little shaken but uninjured other than a couple of powder burns on his arm. He was firing Factory Privi 75 grain ammunition. The bullet only traveled about half an inch into the bore, the case completely disintegrated. He sent the entire thing back to Bushmaster and they sent him a brand new rifle.
Wow. I'm glad he wasn't hurt. Any idea what caused this blow up???

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Old January 8th, 2017, 06:00 AM   #30
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Wow. I'm glad he wasn't hurt. Any idea what caused this blow up???
We spent the whole ride home in the camper trying to figure that out. Best as we can tell it was an out of battery detonation.

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