barrel melting

[TRA]

They did not melt. Heavily eroded sure. But not melt.

AND, the erosion is caused by?????

 

[people]

AND, the erosion is caused by?????

Well you see when you fire a rifle your personal Fairy Godmother dances a jig in the bore. Her shoes are very tough and cause damage. Over time this damage is cumulative.

 

[TRA]

Well you see when you fire a rifle your personal Fairy Godmother dances a jig in the bore. Her shoes are very tough and cause damage. Over time this damage is cumulative.

Home schooled?

 

[people]

Home schooled?

Same school you went to. Yes I did check. Your profile is not as hidden as you would
like.

Edit
just not the same years.

 

[TRA]

Same school you went to. Yes I did check. Your profile is not as hidden as you would like.

I make no attempt to hide on this site. Something you can't claim to do. You seem to be the one who needs to hide, not me.

BTW, Why are you hiding.

 

[people]

I make no attempt to hide on this site. Something you can't claim to do. You seem to be the one who needs to hide, not me.

BTW, Why are you hiding.

You hide your online status and don't allow anyone to see your profile page. Looks like hiding to me.

 

[people]

Trust me, sustained full auto fire "will" melt barrel steel, up to the point they stop functioning. M-60 barrels are "stellite" lined and still give up, if fired long enough.
Rest assured that barrel in the 3rd video is toast. Barrels melt from the inside out not outside in or front to rear. Technically every shot fired melts barrel steel.

As far as the media who cares what they say. The media does fairly well considering that they have no practical experience whatsoever. Cut them some slack or volunteer to educate them. I'm pretty sure most of them would like to get it right.

Lets get back on topic. Are any of those three barrels melted? No. They did not melt. Are they fully destroyed? No. Are they useable as a bullet hose? Maybe. Will they give you anything that can be considered accuracy? Nope.

Did they experience some melting? Yes in the same way blacksmith melts steel. Basically heat and hammer it. Let us ask the question again. Did they melt? No. There was not a puddle of steel when they were done. They were still in tube shape.

 

[Rsadams]

I thought it held up pretty good.. It doesn't get run much harder than that...

 

[Knotwild]

I just heard on Fox news that you cant put a suppressor on an AR15 because the barrel will melt. Be careful out there. These people in the news business need to stick with what they know.

News is nothing but propaganda and ratings, that includes FOX News. The people they really influence are the stupid ones that accept them at face value; but the worst part is that these people vote too. You may say "not me", but if you watch it or listen to it, it will effect your opinions.

They also accept the collateral damage of informed people who disagree, because there are greater numbers of uninformed people who take the "doctored" news at face value - and they vote.

I don't turn the News on in my house or on the radio. They educate the ignorant, not keep you informed.

 

[T-shooter]

Lets get back on topic. Are any of those three barrels melted? No. They did not melt. Are they fully destroyed? No. Are they useable as a bullet hose? Maybe. Will they give you anything that can be considered accuracy? Nope.

Did they experience some melting? Yes in the same way blacksmith melts steel. Basically heat and hammer it. Let us ask the question again. Did they melt? No. There was not a puddle of steel when they were done. They were still in tube shape.

The barrels didn't melt. From what I remember, some of the barrels sagged and the throats were burned out. On an earlier test with another AR, it ran something like 830 rounds before the barrel bulged and burst in front of the gas block. No one in their right mind is going to use or punish their own rifle like that except for a test.

 

[Eddie Harren]

You hide your online status and don't allow anyone to see your profile page. Looks like hiding to me.

BUSTED!!!!!!

 

[savagedasher]

Watching Fox News They reported much of the information they post is got off the internet . So ask yourself when you post stupid things about gun Who is feeding the fire ? Larry

 

[Steve Blair]

In all three videos the barrel is not melting. The plastic hand guard is burning in the first two and the third that is the silencer not the barrel.
Barrels have been known to turn red hot, the german MG42 could turn a barrel red hot and could distort or rupture if taken too far. That is why they came with and traveled with a replacement barrel. They would change them out periodically after prolonged fire. But they fired a 7.62 round at 1200 rpm.

It was an 8mm cartridge, namely the 8x57. The post war MG3 used by the Bundeswehr fired the NATO 7.62x51.

 

[TRA]

I think you naysayers have a warped opinion of what melt,burn,erode means. If your definition of melt is a candy bar on a hot day, then no, they wouldn't melt. Steel melts at 2750 degrees. I have in fact witnessed a M-60 that had globs of steel lying in front of the gun on the ground, just as if it were cut with a torch.

Busted? highly unlikely.

 

[people]

Pictures or it never happened.

 

[TRA]

people, harren....I'm sure this is above your comprehension levels but you can read it for yourself and try to understand the mechanics of barrel erosion.

It gets a little tiring dealing with folks like you.

Consider yourselves BUSTED!!!

http://inpressco.com/wp-content/uploads/2016/03/Paper49231-235.pdf

The military has done these tests repeatedly and it's common knowledge that barrels do in fact melt.

As you read this you will note that barrels erode by, chemical, thermal, and particulate erosion. As this tit for tat is about thermal erosion I quote the Thermal Process

3.2 Thermal Erosion High flame temperature propellants may produce combustion gases at temperatures as high as 3700 K. Heat transfer through the gas boundary layer is the primary mechanism. Besides convection, heating due to the sliding friction of the round and radiative transfer may also occur. Since the heat transfer from the propellant combustion to the barrel surface takes place in only a time span of 20-30 milliseconds, a lot of heat is accumulated over the barrel surface, usually at a depth of 1 mm only. The temperature of the gases decreases as the expansion proceeds, thus thermal erosion is critical only at the initial part where the rifiling commences. Lawton's original correlation shows that erosive wear at the commencement of rifiling is approximated by an exponential function of maximum bore temperature Tmax. Lawton's improved correlation goes further by taking exposure time into account. In both cases, though, the temperature dependence of erosion is strong. In theabsence of changes in propellant gas composition, for gun steel of typical hardness a 10% increase in Tmax results in an increase in erosion of 250%. High flame temperature propellant formulations may lead to high bore temperatures, it is often reported in the literature that hot propellants are highly erosive. Thus itis commonly assumed that erosion will be reduced by developing low flame temperature propellants. There are several physical processes identified in the literature as responsible for thermal erosion. In the so-called melt-wipe process, the bore surface material is melted and the liquid is wiped away through the mechanical action of solid particles entrained in the propellant gas flow or by the flow itself.

.

 

[people]

Lol You have been triggered. Still pictures or it never happened. Got proof you were even in? I also did not even read your post.

 

[TRA]

Lol You have been triggered. Still pictures or it never happened. Got proof you were even in? I also did not even read your post.

Triggered, surely you jest.. LOL

Just proving, you and eddie ain't ner as smart as you think you are.

 

[people]

Triggered, surely you jest.. LOL

Just proving, you and eddie ain't ner as smart as you think you are.

No it is poking fun at you because you are still hiding. I did look at your post did not read it. I will not click on some link. Especially from a person like you.

My blacksmith comment still stands. You expose steel to that much heat and pressure it can flow. More like plastic flow than just melt. Kind of exactly how a blacksmith works metal.


I would go on but the horse is dead and why beat it more?

 

[/VH]

Dudes,

Get a life!