@Better_Clean_Than_Green you get the gunner to shoot until it's warm enough to pass around and warm your hands up without burning everyone. Obviously good gunners were highly sought after
@@quineloe I was never in the military, or an arms expert, but I have seen/heard a lot of military videos, and I've always heard that one can only fire so many rounds through a barrel, before the rifling wears down(which throws off accuracy) and if so many ammo cans are fired in a row, the barrel gets so hot and starts to warp, which will either throw of accuracy, or rounds will start to ignite themselves once chambered. I've even heard the same for big navy guns. A battle ship in the pacific, during WWII fired so many rounds during an engagement, it had to get port asap to replace its barrels, because the rifling was so heavily worn, the accuracy became horrendous. So when I see the 2 guys in the video switch barrels, I'm assuming they fired so many rounds through that barrel, the rifling has worn down and the accuracy has begun to be effected. Or I'm also assuming, machine gunners in training are told something along the lines of, "after shooting 5 cans of ammo, swap barrels because they're at their specification and will begin to screw up your shot."
@@elgoog7830 So I actually was in the military and you swap machine gun and machine cannon barrels back and forth to prevent overheating BEFORE the heat damages the barrel.
@@elgoog7830 Naval guns are different, and you are right in that case - battleship calibre naval artillery barrels might only be good for a couple hundred rounds because the extreme forces involved will literally strip the rifling out over time. Keep in mind that a hundred rounds for a gun that size could represent hours of sustained fire. This is as quineloe pointed out, entirely different from why you swap barrels on a machine gun or cannon, which is due to overheating. An air-cooled mg could start overheating a barrel in just a minute or two of really heavy sustained fire. The point is to switch back and forth between your spare barrels - one cools off while the other is used, then you swap it back in. If you waited to change it until the barrel got so hot that you damage it, now you only have one good barrel to fight with. As a sidenote, basically every machine gun is designed with an open bolt, meaning that there is no round in the chamber until you pull the trigger, so even if the chamber is hot enough to ignite the round, there is no round for it to ignite. That's only possible in a closed bolt weapon like most assault rifles, and you'd generally have to work pretty hard (and stupid) to get that to happen.
@@Strait_Raider Appreciate the explanations, but I've yet to hear you or the other guy verify of deny my claim, that so many rounds can be fired through a barrel before it needs to be changed. For example: the machine gun we've been talking about, how many rounds can go through that barrel before the rifling is too worn to be accurate? Or am I misinterpreting something?
I've had a chance to change barrels on the M2 and now M2A1 50 cal machine gun. I've never seen a Flak 30 barrel change before and it reminds me more of how the M2A1 barrel change is now, like the 240b and Bren gun. very cool to see thanks for the upload!
Replaced to prevent overheating. Barrel gets too hot, it will deform the barrel. It will be very slight, but being able to hit targets at a distance will definitely be affected. If the barrel gets way too hot. The barrel will likely warp and even cause a round to go off prematurely in the chamber.
We did the same thing in the Swiss army with the Oe64 until the nineties, a "pain in the hands", the amiant gloves for this action were not so effective. It was important not to forget to keep a sharp lookout, otherwise it could have turned with all its weight on the shooter.
I don't think that they were using that for flak suppression, more like people and vehicle suppression!! Still crazy on how quick that barrel change was.
The question that my brain immediately asks: Were there two cameras filming this one barrel change or was it two barrel changes filmed from two different angles and the footage was spliced together to look like it was the same barrel change? Back then it would have been weird to have 2 cameras filming the same gun doing a barrel change during combat, right? So it was either during training or it was two different barrel changes filmed by one camera. Yes, I am autistic. How did you know?
"Klaus! It doesn't need changing!"
"I know but it's warm."
"Well, maybe we can use it to warm ourselves then."
"Isn't that too hot though?"
@Better_Clean_Than_Green you get the gunner to shoot until it's warm enough to pass around and warm your hands up without burning everyone. Obviously good gunners were highly sought after
Sleeping with a warm barrel in your sleeping bag during Stalingrad doesn't make you gay.
Marrying it once you've been surrounded by the Reds... might.
@@ScoutSniper3124 😂
It's super rare footage like this that make this channel stand out! Great stuff!
Yup
@@danielwer6488 yeah, so much unseen footage
In your opinion, this footage is super rare because it shows the 20mm Flak shooting or because it shows a barrel change?
@@ukasz-zm9qc Barrel change. Heaps of film showing the 20mm firing but rarely do you see how the barrel was changed over.
@@northernskys Especially barrell changing in combat.
I can't imagine how happy the trigger man is, to get fresh, straight shooting barrel.
Probably like a fresh pair of socks.
You don't change the barrel in combat because of wear, you change it to prevent overheating
@@quineloe
I was never in the military, or an arms expert, but I have seen/heard a lot of military videos, and I've always heard that one can only fire so many rounds through a barrel, before the rifling wears down(which throws off accuracy) and if so many ammo cans are fired in a row, the barrel gets so hot and starts to warp, which will either throw of accuracy, or rounds will start to ignite themselves once chambered.
I've even heard the same for big navy guns. A battle ship in the pacific, during WWII fired so many rounds during an engagement, it had to get port asap to replace its barrels, because the rifling was so heavily worn, the accuracy became horrendous.
So when I see the 2 guys in the video switch barrels, I'm assuming they fired so many rounds through that barrel, the rifling has worn down and the accuracy has begun to be effected. Or I'm also assuming, machine gunners in training are told something along the lines of, "after shooting 5 cans of ammo, swap barrels because they're at their specification and will begin to screw up your shot."
@@elgoog7830 So I actually was in the military and you swap machine gun and machine cannon barrels back and forth to prevent overheating BEFORE the heat damages the barrel.
@@elgoog7830 Naval guns are different, and you are right in that case - battleship calibre naval artillery barrels might only be good for a couple hundred rounds because the extreme forces involved will literally strip the rifling out over time. Keep in mind that a hundred rounds for a gun that size could represent hours of sustained fire.
This is as quineloe pointed out, entirely different from why you swap barrels on a machine gun or cannon, which is due to overheating. An air-cooled mg could start overheating a barrel in just a minute or two of really heavy sustained fire. The point is to switch back and forth between your spare barrels - one cools off while the other is used, then you swap it back in. If you waited to change it until the barrel got so hot that you damage it, now you only have one good barrel to fight with.
As a sidenote, basically every machine gun is designed with an open bolt, meaning that there is no round in the chamber until you pull the trigger, so even if the chamber is hot enough to ignite the round, there is no round for it to ignite. That's only possible in a closed bolt weapon like most assault rifles, and you'd generally have to work pretty hard (and stupid) to get that to happen.
@@Strait_Raider
Appreciate the explanations, but I've yet to hear you or the other guy verify of deny my claim, that so many rounds can be fired through a barrel before it needs to be changed. For example: the machine gun we've been talking about, how many rounds can go through that barrel before the rifling is too worn to be accurate?
Or am I misinterpreting something?
Barrel changed mid action, less than 1 minute and back into the fight!
I think that a handle on the barrel is a much more elegant solution than the old asbestos cloves. Brillant video, thanks for sharing.
The guy shooting the guy is looking into a little optical screen and pushing a pedal. Just like playing a car racing game.
Asbestos gloves best gloves.
Wenn´s hart auf hart kommt ist es ein gutes Gefühl eine 2 cm neben sich zu haben
I've had a chance to change barrels on the M2 and now M2A1 50 cal machine gun. I've never seen a Flak 30 barrel change before and it reminds me more of how the M2A1 barrel change is now, like the 240b and Bren gun. very cool to see thanks for the upload!
every video is produced with such care and quality, it shows!
Cool to think that it’s all designed to be repaired in the field with thick hand mitts.
Thats fast
Absolutely... like a pit stop! 👍🏽
It's the interrupted thread design that makes it so quick.
Excellent footage.
Does everyone enjoy this channel as much as I do?
Insane hardship these men went trough.
Никаких мобильных телефонов, никакого интернета, только крепкие парни на свежем воздухе работают сообща.
Kids these days don't know how to change a barrel
@@signs80😅😅😅😅
@@signs80 why would they need to know that? Ok, let's be fair, mary Murican kids know this stuff...
No head spacing and timing needed! Change and go!
The barrels were headspaced from the factory for each unit of a flak gun. They were numbered to the gun.
Crazy how such a routine-looking action, can determine the life and death of someone else’s great grandparents. War is hell.
Quick change is right. I bet that first barrel was damned hot.
Effective
Me: my legs are tired, i worked 12 hours today nonstop.
German engineers:
This footage I've never seen before has better framerate than any wartime footage of this era I remember, lol.
Me on Heroes and Generals standing by for the barrel switch.
Love it no ear pro just some boys not hearing a thing
Good drills in combat.
So is the worn barrel swabbed and ready for re-use or is it so worn it can't be used?
Depends on whether they changed soon enough.
they probably changed it to prevent it from overheating, it can go back as soon as it's cooled down.
@@berlin128g Thanks.
Replaced to prevent overheating. Barrel gets too hot, it will deform the barrel. It will be very slight, but being able to hit targets at a distance will definitely be affected. If the barrel gets way too hot. The barrel will likely warp and even cause a round to go off prematurely in the chamber.
@@mirrorblue100you can shoot for more than twice as long with two barrels because ideally they never have to get hot.
I wonder what was down-range of those 20mm rounds?
We did the same thing in the Swiss army with the Oe64 until the nineties, a "pain in the hands", the amiant gloves for this action were not so effective.
It was important not to forget to keep a sharp lookout, otherwise it could have turned with all its weight on the shooter.
The Bushmaster 25 is the same way. Literally just screws in. A quarter turn with a simple locking tab.
Genuinely curious, how long do hot barrels stay hot in environments like this?
Do they reuse the barrel once it cools down or it worn out and never reused?
I don't think that they were using that for flak suppression, more like people and vehicle suppression!! Still crazy on how quick that barrel change was.
Спасибо
за что ?
@@user-mm5wj9rf5sFor the video? Because we all know this channel is not supporting ideologies but preserving history
How many of those do they keep on them in wartime? Old ones I'm assuming they just toss to the side unless they can keep them to reuse the metal?
They usually had one second barrel, like on the MG. But they weren't tossed aside. You let them cool down and use them again, of course.
❤
Fast and furious 🎉
They change the barrel to avoid overheating.
was it like 15 seconds barrel change?
I'm sure their hearing was fine if they survived the war
Contrary to popular belief, ear protection were indeed issued.
Its those small foam things you put in your ear.
Where do you get those? Are you a time traveler that just presents his own recordings?
Die Deutsche Wochenschau
Imagne doing that in the Africa corps desert. HOTTER me thinks
Interesting
Water coming out at 0:08? Play it at x0.25
the fact that this thing was used against infantry...
All to no avail of course.
As on MG.
Only source of heat in a 2 km radius
A 20mm weapon confusingly called a 30
30 is for the year 1930, not the caliber, since everything from 20mm and up were designated in cm not mm by the Germans.
The visibility was like 10meters... better off swinging that barrel
Like mg42... 😂😂😂
The question that my brain immediately asks: Were there two cameras filming this one barrel change or was it two barrel changes filmed from two different angles and the footage was spliced together to look like it was the same barrel change? Back then it would have been weird to have 2 cameras filming the same gun doing a barrel change during combat, right? So it was either during training or it was two different barrel changes filmed by one camera.
Yes, I am autistic. How did you know?
And the wermacht lost, they couldnt protect their families, their women their children.
that took way too long