m&p15 sport explodes!!!

[rojodiablo]

I just bought a batch of this. You're making me nervous. I've heard it's good stuff. Hopefully yours was an isolated event.

Very highly unlikely with Federal ammo. If the 183 has a bad lot, then it's possible that was the ammo at issue, and not the 855.
But really, it CAN happen with any ammo, new or reloaded. It's just far likelier to happen with reloads.
Shoot with confidence; just pay attention to what is really going on when ammo starts flying downrange.

 

[Capt Crunch]

So, just curious...I know it's rare but how would you remove a squib if this happened? Just take it straight to a gunsmith or can you safely remove it yourself? And is that pretty much going to kill your barrel?

 

[Mustang5L5]

You can tap it out with a wooden dowel.



Sent from my iPhone 4S using Tapatalk

 

[Gunslinger808]

I just bought a batch of this. You're making me nervous. I've heard it's good stuff. Hopefully yours was an isolated event.

Yeah, it's LC XM855, I still have about 4000 rds left and I'll keep shooting it.
Considering I've already fired about 8000 rds of it, I put it down to just one of those things that happen.
I've seen all sorts of issues with every respectable brand of ammo, from primers in backwards to bullets seated where the neck was peeled back.
I wouldn't be to concerned with it, even the best Quality Control can miss one (and they do).
As for getting the bullet out, I used a brass rod and then inspected the barrel for bulges and cracks with a bore scope and found no evidence of damage.

 

[Splittiebus66]

The shooter took down the video of himself trashing the Sport. He claimed the melonite coating in the chamber caused the bullet to hang up and blow up the rifle.

 

[rojodiablo]

The shooter took down the video of himself trashing the Sport. He claimed the melonite coating in the chamber caused the bullet to hang up and blow up the rifle.

Well, read up on Melonite. It's a process, not really an application or coating. More commonly known as 'Salt Carbuerizing'.
He's mistaken and does not understand how the Melonite process is applied.
Unlike chroming, it does not add anything at all material-wise to the barrel. This is why Melonite barrels are generally referred to as being more accurate than a chrome lined barrel.

 

[Nacho Man]

so when he pulled the trigger and click, the primer went off with no ignition of the powder and wedged the bullet in the barrel slightly forward of the chamber? im curious, i shoot my ar alot and don't want my rifle to detonate like that. or was the last round he shot before the click didn't have sufficient charge and the bullet never exited the barrel.

 

[Gunslinger808]

so when he pulled the trigger and click, the primer went off with no ignition of the powder and wedged the bullet in the barrel slightly forward of the chamber? im curious, i shoot my ar alot and don't want my rifle to detonate like that. or was the last round he shot before the click didn't have sufficient charge and the bullet never exited the barrel.

Exactly, there was enough charge that the bullet went far enough down the barrel to allow the next round to chamber.
The subsequent round was a full power round and the gas/pressure had nowhere to go, so it exited at the weakest point.

 

[JaPes]

so when he pulled the trigger and click, the primer went off with no ignition of the powder and wedged the bullet in the barrel slightly forward of the chamber? im curious, i shoot my ar alot and don't want my rifle to detonate like that. or was the last round he shot before the click didn't have sufficient charge and the bullet never exited the barrel.

The first cartridge was most likely under charged (in shooting vernacular it's called a squib). The under charged cartridge didn't provide enough energy to propel the projectile all the way out of the barrel.

It had enough energy to partially cycle the bolt far enough to eject the spent case & maybe partially chamber a fresh round. Looked to me like the bolt didn't have enough rearward movement to reset the trigger.

Shooter then tap/rack/banged a fresh round into full battery & pulled the trigger.

Barrel obstructionl + ignition of cartridge behind it = catastrophic failure.

Here are some examples:

Rifle burst test - Remington, Browning, Sako, Blaser, Mannlicher, Antonio Zoli, Howa, Tikka - YouTube

Gun Blows Up in Face! He should have used Bore Tex! - YouTube

Here's a different video. This one is a barrel obstruction on an AR platform. Inexperienced or inattentive shooter tap/racks/bangs & pounds on a forward assist multiple times, ignores the warning signs, and BOOM! (Just noticed that he inserts mag, pounds on the FA, then charges the rifle.)

http://www.youtube.com/watch?v=Oh1lyMyejpI

*Just noticed that he inserts mag, pounds on the FA when there is no round present, then charges the rifle.*

As I've posted earlier, I've only experienced a squib once while shooting a pistol. I got a pop. The slide partially cycled enough to eject a spent case & chamber a new one.

The entire firing cycle felt weak. It didn't feel right.

I dropped mag and manually cycled slide to eject live round. I didn't know what had happened. By sheer dumb luck, for some reason I tried to push a Bic pen down the muzzle and stumbled upon the obstruction.

Tapped it out with a wood dowel & a hammer.

If for any reason something doesn't feel right, stop shooting, safe & clear the firearm, and inspect it.

 

[Jayhawkhuntclub]

The shooter took down the video of himself trashing the Sport. He claimed the melonite coating in the chamber caused the bullet to hang up and blow up the rifle.

Someone should tell him that it's not a coating. Interesting theory he has though.

 

[JaPes]

The shooter took down the video of himself trashing the Sport. He claimed the melonite coating in the chamber caused the bullet to hang up and blow up the rifle.

Well, read up on Melonite. It's a process, not really an application or coating. More commonly known as 'Salt Carbuerizing'.
He's mistaken and does not understand how the Melonite process is applied.
Unlike chroming, it does not add anything at all material-wise to the barrel. This is why Melonite barrels are generally referred to as being more accurate than a chrome lined barrel.

Someone should tell him that it's not a coating. Interesting theory he has though.

Take it from his perspective. His choice to save a few cents & shoot reloaded ammo (that he didn't reload himself) directly contributed to the sequence of events that resulted in a catastrophic failure.

I don't know of any firearm manufacturer that endorses the use of reloaded ammo or will perform warranty service for damage/failure caused from reloaded ammo.

The reloaded ammo manufacturer most likely has a indemnification clause contingent upon purchase of the ammo. "The buyer indemnifies & will not hold us responsible for ..."

He has to find some way to lay false blame on S&W to get his rifle replaced under warranty.

 

[Silversmok3]

After watching the video its clear the squib is a likely cause, given that nothing comes out of the barrel when the rifle went kaboom.

At my last Air Force qualifying visit were cautioned to stop shooting if the rifle behaved in any way out of the ordinary during CATM, and to initiate SPORTS only if the trigger released on an empty or jammed action.

Come to think of it when I was at CATM during Basic I saw an exhibit of an M-16 in three scorched pieces on the wall of the armory.Turned out the recruit previous had shot a squib load and didn't tell anyone, which resulted in the next guy in line blowing his rifle and hand to bits.They showed it to our training flight to discourage shady behavior when it came time to clean the weapons. This shooter's story ended much better than that recruit's did, and his is a private weapon.

 

[olwogo]

Reading all the posts, we need to realize, that these weapons aren't toy cap guns! When anything doesn't feel right about a shot, STOP, LOOK, and LIVE! I have been reloading for about 45 yrs. and shooting since I was 6yrs. old (I am 60 now) I have had 3 of what y'all call squibs, we always called it an obstructed barrel. They are a very serious thing to happen, and once you experience one you'll never handle a weapon quite the same. It will get your attention! Stay Alert, Stay Alive!!!!

 

[zeroed_in]

hey team! this is great feedback, a reminder of the dangers that are easily overlooked. safety is key to enjoying a day at the range and being able to get home in one piece. this video was not intened to bash the 'sport' or the persons in the video. i own a 'sport' and have had no problems. and i don't know the people in the video. just trying raise awareness...

 

[rojodiablo]

Live and learn................. Learn and live!

 

[JaPes]

Live and learn................. Learn and live!

Amen brother!

 

[JaPes]

bump for newbie reference.

 

[Wumpus]

Watching the video carefully, I'm not sure what's going on here... The first 6 rounds have a loud report, I see muzzle flash (actual fire at the flash hider), and see a casing eject. Watching full screen, you can see his trigger finger moving on each shot.

After the 6th shot, I do not see his trigger finger move, but it's clear he senses something is wrong. Did he pull the trigger on round 7? If so, I don't hear anything like a squib shot or primer ignition...

He then does a tap-rack drill and ejects round/casing #7 and the next shot is the kaboom.

 

[Kodiakco]

The nice thing, if you can call it that, is that when an AR style firearm KB's most of the energy goes down the mag well. This helps protect the shooter unlike on a bolt action where the energy can go all the way back to the stock and REALLY injure the shooter.

 

[Blondie70]

Looks to me like #7 round did not fire. He ejected it. The bullet may have been stuck in the rifling and stayed there. Chambering a new round may have shoved it forward. An effective squib or blockage. This would be one hard to figure out situation....unless you would have seen that a complete round was manually ejected. Can't see any obvious operator error. Only fault I can figure is the reloaded rounds. Not enuf crimp. I learn from this to make sure to see what I am manually pulling out of chamber .... make sure it's all there.