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Posted: 8/23/2004 12:16:50 PM EDT
[#1]
I have never damaged an AR barrel under sustained fire. I use both 4140 and 4150 steel barrels.
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Posted: 8/23/2004 12:38:34 PM EDT
[#2]
I'm tempted to say more barrels have been ruined or harmed by improper cleaning as opposed to high volume fire.
I know I haven't done it by means of high volume of fire. |
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Posted: 8/23/2004 1:33:21 PM EDT
[#3]
I do get nervous about it, my barrel gets really hot after i throw 50 rounds through it.
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Posted: 8/23/2004 2:06:31 PM EDT
[#4]
Dont worry about 50 rounds, SHIVAN talking about smoking hot. If your AR is a semi you are gonna have to try damn hard to overheat the barrel. |
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Posted: 8/23/2004 2:19:41 PM EDT
[#5]
Yes, the most I have seen, IN SEMI, was 9 mags -- 270 rounds. Barrel was fine -- single shielded handguards weren't....... We have one lone vote that they ruined a barrel but no story...... 
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Posted: 8/23/2004 2:24:29 PM EDT
[#6]
No ruined barrel, but bumped about 10 mags pretty quickly (not as fast as I could though) and then set the gun down on the gun case.
 One ruined gun case DOHH!! I hate it when that happens.Doc |
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Posted: 8/23/2004 2:34:28 PM EDT
[#7]
i voted "no" and here is a story.
I have done, on many different occasions, 16 mag dumps, bump fired, back to back, from a 16" bushmaster HBAR. i ABUSED that weapon. the barrel caught fire twice. i melted my handguards. i had to hold the weapon with the mag... WHILE using gloves. and it STILL doesnt keyhole. i have NO idea what the throat looks like, i bet it is horrible erroded. and i dont know the size of my gas port now, but i bet it is erroded larger as well. but the damn thing still works. and yes, i was worried about it blowing up on me. btw. i bought a new barrel. a 20". S I had to edit this. I have been gettin too many offers. She is already spoken for 
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Posted: 8/23/2004 3:21:47 PM EDT
[#8]
The gas tube will usually rupture before the barrel gets hot enough to alter the metal structure in sustained rapid fire . But then again I know people that can ruin a cannon ball with a rubber hammer .
If that’s you , then all bets are off  |
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Posted: 8/23/2004 3:45:43 PM EDT
[#9]
I have made them smoke. Semi with chrome barrel. Handuards started to smell too.
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Posted: 8/23/2004 3:48:11 PM EDT
[#10]
I once witnessed a guy mess up a crow bar in a sand pile....
And I saw the same guy mess up an anvil with a rubber mallet..... And I believe we were able to ruin an M-60 Barrel through sustained firing It was glowing..... but it still worked.... I don't think the glow would have been visible during daylight. But there was a dull glow at night
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Posted: 8/23/2004 3:52:18 PM EDT
[#11]
I believe it was Garry Owen who fired an AR on full auto until the gas tube melted.
I heard he replaced the gas tube and it worked like normal again. |
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Posted: 8/24/2004 12:10:12 AM EDT
[#12]
I took out a hard to get 14.5" Diemaco cold hammer forged C8 barrel in a 360 rounds sustain FA fire.
damn me.
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Posted: 8/24/2004 3:56:53 AM EDT
[#13]
That was me. A buddy of mine's issued M4 had been through a serious amount of abuse over it's lifetime and the barrel was shot out. The unit armorer at the time was a complete and utter retard and tried to say the guy just couldn't shoot. The consensus was we'd give him something he couldn't argue with and basically have a SPENDEX through the weapon. About 8 guys took turn shooting it on full auto for what had to be 10,00 rounds, only stopping to let it cool off enough to clean when it would no longer function. That will ruin a barrel. |
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Posted: 8/24/2004 3:59:17 AM EDT
[#14]
Here's a link that's "Sorta" in-line with your question.
http://www.galleryofguns.com/shootingTimes/Articles/DisplayArticles.asp?ID=1205 This is from an old Shooting Times "Torture test" they did on a Colt H-Bar to see how many rounds they could put through it at one time ( 10,000 ). |
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Posted: 8/24/2004 3:59:49 AM EDT
[#15]
4th option: Not yet, will update.
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Posted: 8/24/2004 4:16:35 AM EDT
[#16]
In the service M16, yes.
Tj |
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Posted: 8/24/2004 5:05:59 AM EDT
[#17]
nope
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Posted: 8/24/2004 5:20:51 AM EDT
[#18]
I do not think it can be done, at least not with an HBAR because I have seen it tried. Using full-auto M16, and dumping C-Mag after C-Mag, the gas tube fails before the barrel. |
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Posted: 8/24/2004 5:23:15 AM EDT
[#19]
No.
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Posted: 8/24/2004 5:42:03 AM EDT
[#20]
I see five dead barrels. 
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Posted: 8/24/2004 5:43:53 AM EDT
[#21]
Notice the time difference in your post and MY post? Also note there are 5 dead barrels, at this time, but only three stories...... |
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Posted: 8/24/2004 5:54:32 AM EDT
[#22]
One of the other two unaccounted votes was mine. I just did that to be a "contrarian". So that leaves one ruined barrel. It must be for sale on the EE!
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Posted: 8/24/2004 5:56:14 AM EDT
[#23]
What a douche.....
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Posted: 8/24/2004 5:57:32 AM EDT
[#24]
I know! But I always root for the underdog on polls!
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Posted: 8/24/2004 6:00:21 AM EDT
[#25]
Nope
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Posted: 8/24/2004 6:03:35 AM EDT
[#26]
... I dumped a full beta-mag through a CAVARMS dealer-sample right after someone else. Barrel was hot and smoking but appeared to shoot accurately immediately following
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Posted: 8/24/2004 6:05:52 AM EDT
[#27]
No, not in military, LE or civilian use.
Voting to skew the polls are an example of why too much of the info on this site can be used for info only. It is also why it pays to pay attention to who is posting. |
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Posted: 8/24/2004 6:14:10 AM EDT
[#28]
I've never ruined an AR barrel, but I have seen some nasty looking Service Barrels. I personally ruined an M-240 barrel a few years back due to me being a complete idiot. I had been firing all day and just to finish the ammo, I went through 4 battle packs at cyclic with the fastest box changing ever. no barrel changes, and as soon as I was done, the barrel had a noticable droop to it...melt down. Luckily the armorer was cool and said he'd write it off as a training accident....yea, the only accident was letting me sit behind a SAW, god i love that baby.
matt 
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Posted: 8/24/2004 8:51:26 AM EDT
[#29]
This should just show you how hard it is to ruin an AR barrel with sustained firing. I'vre never heard of one being damaged this way unless you tried to on purpose. In my case, it took 8 guys loading and shooting for hours to hurt it. M240, SAW, and M60 barrels are another thing. You can shoot enough rounds that you can actually see tracers going down the red-hot barrel in them. A drooping barrel at the end of the day is a funny thing indeed.
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Posted: 8/24/2004 8:53:31 AM EDT
[#30]
No need to convince ME.........I was already convinced that AR barrels were damn near indestructible. Some folks on the board seem to believe that a couple hundred rounds will marginalize an AR barrel. 
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Posted: 8/24/2004 9:40:53 AM EDT
[#31]
No story to tell other than full auto at night kept firing mags till the barrell got red hot and wouldn't hold an MOA for shit after that. Was lucky I guess I didn't cook one off but then that wasn't on my mind at the time. In retrospect, the rounds weren't spending much time in the chamber. Tj |
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Posted: 8/24/2004 10:51:50 AM EDT
[#32]
I once dumped 3 30 round mags and 2 c-mags (290 rounds) through a shorty upper on full auto. The gas tube was red hot and ended sagging a little bit.
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Posted: 8/24/2004 10:52:36 AM EDT
[#33]
I had a barrel on an M16A2 service rifle destroyed while firing "suppressive" fire... but never sustained fire. An enemy round hit my barrel about 4 inches from the flash compressor and made it inoperable (I could have tried firing through it after that, but didn't bother).
Semper Fidelis |
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Posted: 8/24/2004 11:39:20 AM EDT
[#34]
I have not. However, my buddy is an army ranger. He said that they would shoot M4s on full auto clip after clip and it got so hot that you could see the rounds passing through the barrel. In other words, yes barrels can get ruined by heat, but it would require quite a bit of effort and ammo using a semi.
You can ruin a barrel without it looking ruined. If you get it hot enough it will loose its temper and be very weak, but you may not be able to tell the difference. |
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Posted: 8/24/2004 11:46:51 AM EDT
[#35]
I'm a Cop in the AirForce and to my knowledge all we have is 3rd burst m-4's infact thats what I carry day to day. Are other services still using F/A? I would understand if he said his SP1 had a melt down, but the advantages of 3-burst are defenate. it would seem wastefull for the Military to still be using F/A especialy on the less accurate M-4. can anyone comment on this? |
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Posted: 8/24/2004 12:09:41 PM EDT
[#36]
I Done 2 C-Mags through a 16" thin Barrel at the Pine Barrons with just the barrel turning White after it cooled down and stayed that way. Even after putting oil on it it became white again. The guy says it still shoots just fine. Still wouldn't do it to my own rifles.
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Posted: 8/24/2004 12:46:09 PM EDT
[#37]
I don't think you can fire an M4 fast enough to heat the barrel up that much. It didn't even glow like that when we destroyed the one on purpose. Belt-feds: yes. The M4 would cool enough during reloading to keep it from glowing. |
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Posted: 8/24/2004 4:41:30 PM EDT
[#38]
Whenever you tell a story with the words "clip and my buddy an army ranger" in it, your credibility goes way down. |
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Posted: 8/24/2004 4:44:19 PM EDT
[#39]
And the CLIPS were those NAVY SEAL ones too!
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Posted: 8/24/2004 5:44:28 PM EDT
[#40]
yes I've ruined a barrel, I fired 34 30rounders through a A1 light weight on new years eve once, I would have fired more but the gun locked up tight, the upper receiver got so hot it ruined the finish just behind the nut and the barrel was glowing, it melted the tri hand gaurds and the gas tube was flat against the barrel, don't know if the barrel warped or not, but it was shot out and I couldn't get the sight tower off without ruining it.
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Posted: 8/24/2004 6:33:55 PM EDT
[#41]
 Well this may not be a "BARREL" mishap, but if you want to split hairs...I think you could say this guy ruined his upper. Aparently there was some mix-up between reloading pistol and rifle powder...pistol powder=higher preasure. higher preasure= well, you can see. Granted its not "your ranger buddies m-4" but its still pretty bad. Rumor has it the guy didnt even get hurt! Thats good news. I used to have some pictures of a girl who opened the cover of her M-60 with a round still in the chamber/hot barrel. The round cooked off and she ate 51mm of brass from about 6 inches away. Its a nice set of pics wish I could find them, we used them for training....lesson learned, hot barrels can be a pain in the ass/face. She also survived but with some minor scars. Peace out Matt
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Posted: 8/25/2004 2:09:25 PM EDT
[#42]
It depends on what you mean by "ruined".
Does anybody here think that two or three hundred round strings are good for rifles? Does it make you more proficient? Does it impress bystanders---oh, now I understand. |
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Posted: 8/25/2004 3:25:03 PM EDT
[#43]
No, but they are fun. 
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Posted: 8/25/2004 3:46:22 PM EDT
[#44]
Not trying to flame or be a dick, I'm just curious about this particular "KB" If the powder was clearly too powerful for the gun, why would the bolt still be jammed into the back of the barrel, and the carrier BEHIND it blown apart? it also looks like a round cooked off inside the magazine as well, the way the feed lips are blown out.... interestingly enough, the hammer appears to be intact. I mean hell, the firing pin is still inside the bolt body... it looks like whatever explosion happened, it happened behind the bolt |
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Posted: 8/25/2004 5:01:36 PM EDT
[#45]
hey no harm, here's what happened....The Powder was too intense and the ejector was sticking out of the bolt from time to time. Thus preventing the bolt from unlocking from the chamber. When the bolt failed to unlock the carrier was forced back with to much preasure. It was found that the carrier was split in two by the bolt cam pin, in turn blowing the upper reciever in two. Sort of like a log-splitter. Here's the link to the report just incase you'd like to view it for yourself..ar15 kaboom hopefully this will clear up your confusion... Matt
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Posted: 8/25/2004 6:29:48 PM EDT
[#46]
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Posted: 8/25/2004 6:47:49 PM EDT
[#47]
Didn't read link but do you mean extractor? |
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Posted: 8/25/2004 6:50:51 PM EDT
[#48]
yep! i am we-tod-ed
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