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Posted: 3/15/2011 6:06:20 PM EDT
This happened at a local firearms class this last weekend. I was not there but had a couple of buddies that attended. I will ask them what ammo the shooter was using... EDT: Mossberg 590 Ammo was #5 from walmart. |
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Posted: 3/15/2011 6:07:13 PM EDT
[#1]
nothing to do with the ammo
that was a plugged barrel needs to learn muzzle control and dont stick it in the mud eta:, actually looks to far up to be an obstruction, maybe a left over wad from a weak load? |
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Posted: 3/15/2011 6:07:50 PM EDT
[#2]
Wow! Mossberg 500?
Posted Via AR15.Com Mobile |
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Posted: 3/15/2011 6:08:35 PM EDT
[#3]
Quoted:
nothing to do with the ammo that was a plugged barrel needs to learn muzzle control and dont stick it in the mud They are saying something about wad obstruction.. |
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Posted: 3/15/2011 6:09:22 PM EDT
[#4]
Quoted:
Quoted:
nothing to do with the ammo that was a plugged barrel needs to learn muzzle control and dont stick it in the mud They are saying something about wad obstruction.. I've seen it happen with reloads, but never factory ammo. |
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Posted: 3/15/2011 6:09:34 PM EDT
[#5]
Quoted:
nothing to do with the ammo that was a plugged barrel needs to learn muzzle control and dont stick it in the mud eta:, actually looks to far up to be an obstruction, maybe a left over wad from a weak load? This post seems to make the most sense. Wonder how that felt blowing up in his face. |
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Posted: 3/15/2011 6:09:50 PM EDT
[#6]
Quoted: Quoted: nothing to do with the ammo that was a plugged barrel needs to learn muzzle control and dont stick it in the mud They are saying something about wad obstruction.. haha, just went back and edited that in before i saw your post, thats what i think too |
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Posted: 3/15/2011 6:12:32 PM EDT
[#7]
I've had wads stuck before. Air pressure from the upcoming shot charge just pops them out. This was something more. Maybe the full shot charge.
No excuse for it in a pump IMO, you should be able to feel and observe a squib easily. |
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Posted: 3/15/2011 6:17:55 PM EDT
[#8]
Quoted:
Quoted:
nothing to do with the ammo that was a plugged barrel needs to learn muzzle control and dont stick it in the mud eta:, actually looks to far up to be an obstruction, maybe a left over wad from a weak load? This post seems to make the most sense. Wonder how that felt blowing up in his face. Keltec's new bullpup would've given him a facial. |
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Posted: 3/15/2011 6:22:49 PM EDT
[#9]
Quoted:
Quoted:
Quoted:
nothing to do with the ammo that was a plugged barrel needs to learn muzzle control and dont stick it in the mud They are saying something about wad obstruction.. I've seen it happen with reloads, but never factory ammo. Wow I have shotguns with thousandssss of reloads beat through them that never had a hiccup. |
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Posted: 3/15/2011 6:27:30 PM EDT
[#10]
That looks just about perfect for a 20-12 follower.
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Posted: 3/15/2011 6:27:38 PM EDT
[#11]
Quoted:
I've had wads stuck before. Air pressure from the upcoming shot charge just pops them out. This was something more. Maybe the full shot charge. No excuse for it in a pump IMO, you should be able to feel and observe a squib easily. This is what I dont get. I also figured it would have been popped out by the next shot.. |
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Posted: 3/15/2011 6:28:05 PM EDT
[#12]
Quoted:
That looks just about perfect for a 20-12 follower. This |
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Posted: 3/15/2011 6:28:29 PM EDT
[#13]
It definitely appears that the barrel was obstructed.
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Posted: 3/15/2011 6:36:43 PM EDT
[#14]
Wait, no one has made a Glock joke yet?
ETA: No Mossberg quality jokes either? Posted Via AR15.Com Mobile |
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Posted: 3/15/2011 6:39:17 PM EDT
[#15]
Quoted:
Wait, no one has made a Glock joke yet? ETA: No Mossberg quality jokes either? Posted Via AR15.Com Mobile IBTGJ |
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Posted: 3/15/2011 6:43:37 PM EDT
[#16]
Quoted:
That looks just about perfect for a 20-12 follower. That's where I'd put my money, if we were betting. |
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Posted: 3/15/2011 6:45:28 PM EDT
[#17]
Quoted:
Quoted:
That looks just about perfect for a 20-12 follower. That's where I'd put my money, if we were betting. If so, where is the 20 ga round? It didn't vaporize. |
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Posted: 3/15/2011 6:46:10 PM EDT
[#18]
Another Glock KB.
Thats the trouble with the .40 
When will everyone learn to boycott Glock and their fanboys. 
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Posted: 3/15/2011 6:46:14 PM EDT
[#19]
Quoted: That looks just about perfect for a 20-12 follower. Could someone please explain this? |
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Posted: 3/15/2011 6:51:20 PM EDT
[#20]
Quoted:
Quoted:
That looks just about perfect for a 20-12 follower. Could someone please explain this? Shooter gets careless and distracted. Puts a 20 gauge round in a 12 gauge chamber. Gets a misfire, cycles the action and chambers a 12 gauge round. Fires the 12, causing damage similar to what is shown in the photo. The ones I have seen have been more severe though-barrel breaks in several places instead of just a piece out of the top. |
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Posted: 3/15/2011 6:53:02 PM EDT
[#21]
Quoted: I've had wads stuck before. Air pressure from the upcoming shot charge just pops them out. This was something more. Maybe the full shot charge. No excuse for it in a pump IMO, you should be able to feel and observe a squib easily. If I'm running a pump hard and fast, I wouldn't until it was too late. |
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Posted: 3/15/2011 6:55:42 PM EDT
[#22]
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Posted: 3/15/2011 6:56:04 PM EDT
[#23]
Quoted:
That looks just about perfect for a 20-12 follower. my thoughts as well |
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Posted: 3/15/2011 6:56:47 PM EDT
[#24]
Quoted:
Quoted:
I've had wads stuck before. Air pressure from the upcoming shot charge just pops them out. This was something more. Maybe the full shot charge. No excuse for it in a pump IMO, you should be able to feel and observe a squib easily. If I'm running a pump hard and fast, I wouldn't until it was too late. I'm no stranger to working a shotgun. It's not THAT hard to keep track of. 
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Posted: 3/15/2011 6:56:52 PM EDT
[#25]
Quoted:
Quoted:
That looks just about perfect for a 20-12 follower. Could someone please explain this? Not sure if that would be a 20/12 type deal... a 20 gauge shell is just the right size to go past the chamber and have the rim caught on the forcing cone. Then when it doesn't fire, you pump the gun and load a normal 12 gauge behind it... Usually ends up blowing the chamber area apart... If a 20 gauge shell gets 'lost' in with a bunch of 12 it can sometimes be hard to spot... Looks to me like some sort of barrel obstruction, I kinda doubt a wad alone would do it, maybe a bunch of mud/dirt crap got stuck in the barrel or something? I thought shotguns were designed to fire with an obstructed bore and just "bulge" but not burst like that, especially with the 590 and the heavy ass barrels they have. ETA Maybe a defective barrel? |
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Posted: 3/15/2011 6:58:11 PM EDT
[#26]
double charge?
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Posted: 3/15/2011 6:58:11 PM EDT
[#27]
Was the barrel up his ass when he pulled the trigger?
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Posted: 3/15/2011 7:00:00 PM EDT
[#28]
One possibility. Squib where the ENTIRE shell separated from the shotshell base. Never seen it, but I have heard of it happening with reloaded hulls.
Even then the shooter should have noticed. (from the blowback if nothing else.) Another possibility, he was trying for a hillbilly slug. (Cutting the hull with a pocket knife so it separates behind the wad) |
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Posted: 3/15/2011 7:04:41 PM EDT
[#29]
It doesn't have internal choke threads does it? If so then something could have gotten stuck if the choke wasn't screwed in all the way, or the choke had a crack or something in it.....
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Posted: 3/15/2011 7:06:53 PM EDT
[#30]
It's obvious what happened. That wascally wabbit
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Posted: 3/15/2011 7:08:36 PM EDT
[#31]
Quoted:
Quoted:
Quoted:
Quoted:
nothing to do with the ammo that was a plugged barrel needs to learn muzzle control and dont stick it in the mud They are saying something about wad obstruction.. I've seen it happen with reloads, but never factory ammo. Wow I have shotguns with thousandssss of reloads beat through them that never had a hiccup. Good for you? |
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Posted: 3/15/2011 7:15:43 PM EDT
[#32]
Quoted: Quoted: nothing to do with the ammo that was a plugged barrel needs to learn muzzle control and dont stick it in the mud eta:, actually looks to far up to be an obstruction, maybe a left over wad from a weak load? This post seems to make the most sense. Wonder how that felt blowing up in his face. Wads are plastic and just blow out. I've seen it happen on a skeet range before. My guess is a 20 ga made its way in and moved down the barrel when chambered. Click, rack new shell.. Boom |
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Posted: 3/15/2011 7:15:52 PM EDT
[#33]
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Posted: 3/15/2011 7:54:00 PM EDT
[#34]
Quoted:
It doesn't have internal choke threads does it? If so then something could have gotten stuck if the choke wasn't screwed in all the way, or the choke had a crack or something in it..... I don't think so on that barrel. No sight bead makes it look like it was a longer barrel that has been cut down, or is one of the 18" barrels that usually have a heat shield(which would have blown off with the rupture). With those, I think the sight bead is on the shield instead of the barrel, and I'm pretty sure the barrels don't take screw in chokes. I could be wrong. |
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Posted: 3/15/2011 8:13:00 PM EDT
[#35]
Quoted: Quoted: It doesn't have internal choke threads does it? If so then something could have gotten stuck if the choke wasn't screwed in all the way, or the choke had a crack or something in it..... I don't think so on that barrel. No sight bead makes it look like it was a longer barrel that has been cut down, or is one of the 18" barrels that usually have a heat shield(which would have blown off with the rupture). With those, I think the sight bead is on the shield instead of the barrel, and I'm pretty sure the barrels don't take screw in chokes. I could be wrong. OP claims it to be a 590 Mine does not have choke threads but it does have a screw in brass front sight bead. 20" barrel |
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Posted: 3/15/2011 8:21:07 PM EDT
[#36]
Quoted:
Quoted:
Quoted:
It doesn't have internal choke threads does it? If so then something could have gotten stuck if the choke wasn't screwed in all the way, or the choke had a crack or something in it..... I don't think so on that barrel. No sight bead makes it look like it was a longer barrel that has been cut down, or is one of the 18" barrels that usually have a heat shield(which would have blown off with the rupture). With those, I think the sight bead is on the shield instead of the barrel, and I'm pretty sure the barrels don't take screw in chokes. I could be wrong. OP claims it to be a 590 Mine does not have choke threads but it does have a screw in brass front sight bead. 20" barrel That's not a 590. It's a 500. The tell tale is the barrel retaining screw vs. a nut that is on the 590. Also the mag tube comes out to just shy of the muzzle on the 590 whereas the 500 is shorter as seen in the OP's pic. I agree with the consensus. 20-12. |
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Posted: 3/15/2011 8:29:19 PM EDT
[#37]
Quoted:
Quoted:
Quoted:
It doesn't have internal choke threads does it? If so then something could have gotten stuck if the choke wasn't screwed in all the way, or the choke had a crack or something in it..... I don't think so on that barrel. No sight bead makes it look like it was a longer barrel that has been cut down, or is one of the 18" barrels that usually have a heat shield(which would have blown off with the rupture). With those, I think the sight bead is on the shield instead of the barrel, and I'm pretty sure the barrels don't take screw in chokes. I could be wrong. OP claims it to be a 590 Mine does not have choke threads but it does have a screw in brass front sight bead. 20" barrel it's a 500. Most likely cylinder bore. I really doubt screw in chokes unless he did it aftermarket. I'm still going with either 20/12 or a shell separation stuck in the bore. More likely the latter. It would take a LOT to swage a 20 ga shell base that far down the barrel. |
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Posted: 3/15/2011 8:51:47 PM EDT
[#38]
wow
last century at my very first gunshop job we decided to blow up a shotgun to hang on the wall picked a raggedy old damascus side by side that was already peeling at the solder long story short multiple 3" steel magnum shells fired into barrel plugged with a dozen muzzleloading shotgun waxed cardboard wads were unable to produce anything more than a bulge something seriously had to be stuffed up in that mossberg |
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Posted: 3/15/2011 8:52:31 PM EDT
[#39]
That sucks.
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Posted: 3/15/2011 8:55:42 PM EDT
[#40]
Is it just the barrel or did other things bend?
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Posted: 3/15/2011 9:03:57 PM EDT
[#41]
That's why you don't use bird shot for home defense.
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Posted: 3/15/2011 9:33:52 PM EDT
[#42]
Glock's making shotguns now?
 
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Posted: 3/15/2011 9:37:00 PM EDT
[#43]
Quoted: Glock's making shotguns now? ahh yes there it is......... |
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Posted: 3/15/2011 9:53:40 PM EDT
[#44]
I have seen the 12-20 situation and it closer to the breech. A plugged barrel usually produces a bulge of some sort. I see no bulge. Any kind of plugged barrel usually produces a 360 degree problem. This looks like just the top is missing. I am going to have to say defective barrel.
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Posted: 3/15/2011 10:03:41 PM EDT
[#45]
Would the 20ga ignite after the 12ga shell?
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Posted: 3/15/2011 10:09:16 PM EDT
[#46]
Quoted: I have seen the 12-20 situation and it closer to the breech. A plugged barrel usually produces a bulge of some sort. I see no bulge. Any kind of plugged barrel usually produces a 360 degree problem. This looks like just the top is missing. I am going to have to say defective barrel. there is a pretty good bulge at about the 1/2 way point looks like once it went it then peeled off the top |
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Posted: 3/15/2011 10:30:36 PM EDT
[#47]
Interesting. I would have expected the barrel to have more bulge.
Posted Via AR15.Com Mobile |
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Posted: 3/15/2011 10:32:42 PM EDT
[#48]
Quoted:
Quoted:
Quoted:
nothing to do with the ammo that was a plugged barrel needs to learn muzzle control and dont stick it in the mud They are saying something about wad obstruction.. I've seen it happen with reloads, but never factory ammo. Not only that but it has a very distinct sound... One that would keep 90% of the shooters out there from firing another round |
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Posted: 3/15/2011 10:38:37 PM EDT
[#49]
I have seen at least two videos of people trying to replicate a KB with the 20-12 thing and nether of the barrels blew, I am thinking it is a defect in the metal.
Here is one with no failure. ETA:Here is a failure with an older 12 Ga. that blew closer to the muzzle like the Mossi 500 I still think it was a metal defect, a modern gun like a 500 shouldn't fail if a similar 870 like the first vid doesn't. |
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Posted: 3/15/2011 10:51:05 PM EDT
[#50]
Quoted:
Quoted:
I have seen the 12-20 situation and it closer to the breech. A plugged barrel usually produces a bulge of some sort. I see no bulge. Any kind of plugged barrel usually produces a 360 degree problem. This looks like just the top is missing. I am going to have to say defective barrel. there is a pretty good bulge at about the 1/2 way point looks like once it went it then peeled off the top Yeah I see the bulge in the top piece, looks like the rear half of the barrel cracked, and the thinner front portion peeled off and you can see the "hinge" about 2" from the front where it probably finally let go. And as others have posted, the 12/20 situation would probably blow it up closer to the receiver. I would think something had to be wrong with the barrel for that to happen, maybe it got hit on a concrete shooting table and caused a stress fracture that propagated? |
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