1000 Bullets VS Carbon Fiber Barrel
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- Опубліковано 20 лип 2023
- In this video, we put a carbon fiber barrel to the test, firing 1000 rapid rounds to gauge its resilience under extreme heat. We use a bore scope for an in-depth examination after cutting the barrel clean down the middle, offering a unique inside look.
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MDT was born out of a single purpose: to provide better value and better accuracy for precision rifles. The first MDT chassis was developed from the ground up based on the needs of shooters.
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We collaborate, question and verify our concepts with precision shooters from around the globe to ensure that every MDT product is designed with the same single purpose: to provide our customers with the absolute best product possible. - Розваги
Would have been interesting to see a grouping/accuracy test before and after. Although with the action getting that hot, a zero shift could be from anything at that point besides the barrel
Right that scope/mount took a pounding!
yeah this is the real test. accuracy before and after
Exactly, that would have been sensible. Guess they will have to do another 1000 rounds..lol
Blows my mind that they wouldn’t shoot groupings before and after
This is what I was going to say
better than carbon fiber submarine
That was well timed. Definitely not too soon…
Nice bro. You won the internet today.
The sub shouldve taken notes on how they bonded the titanium and carbon fiber
most underrated comment ever! :)
Lol
A before and after 5 round group would have been awesome! It hurt a little to watch, but super interesting and very entertaining!
Just a note, the carbon fiber not melting the snow isn't necessarily meaning it's not as hot but may just be because carbon fiber is a worse conductor of heat than the metal.
Conductivity of the carbon fiber is probably variable based on the type of resin used, in this case looks like it's more insulative.
that just sounds like saying it's not as hot with extra steps
@@kh8655Not remotely. It's not about how much energy a thing has, but how readily it transfers that energy.
Here's an analogy that might help. The difference between tannerite and C4 is how reactive they are. You can't detonate C4 (RDX) with regular methods. You can set C4 on fire and shoot it with a rifle and it won't detonate. Tannerite detonates in a microwave.
@@YoureSoVane okay but the carbon fiber still isn't as hot because of it's lack of thermal conductivity
@@kh8655 Is a 1000W UV light not very bright just because your eyes can't see it? Are infra sound waves not able to be loud because your ears can't hear it? We have measurements for definitions of a property of an object, and definitions of subjective perception, but they are not the same.
@@YoureSoVane and the carbon fiber was a lower temperature than the metal.
there's your measurement
Definitely should have done before and after grouping. Missed opportunity.
Two key factors can have big impacts to CB barrels: 1, overall thermo conductivity of carbon part: include characteristics of resin, filler and types of carbon fiber; 2nd, carbon to steel ratio.
The alloy formula of steel also plays a good part in it too.
Clearly the Carbon to Steel ratio was admirable in this test.
Also and possible more importantly, the way the barrel is wrapped. Proof Research (used in the video) spins individual carbon fiber strands around the barrel to build up the OD then grinds it back down to contour. Most other companies like Christiansen Arms Wraps their barrels with Woven CF sheets. In theory woven sheets will have much worse thermal dissipation. and, from an engineering standpoint, while being cheaper, is also the incorrect use application. Saving you the science / engineering talk, Proof does it correctly.
That looks to me to be a PROOF Research barrel. I have worked for PROOF Research for over 5 years and its really cool to see some crazy things being done with them.
Amazing! Is this THE Kevin Hamilton? I've heard whispers of your consistency and craftsmanship! Love knowing you turn expensive pipes into fantastic barrels! Keep up the good work!
I’d really like to see how the high carbon low steel barrel in AR platform going to perform in similar test.
As Canadian, we might need a new government first.
Don;t go to BRasil ... need a new COUNTRY first ..
America needs a new government too
Then be sure to vote Pierre Poilievre and the conservatives. He has said his government will repeal the liberal AWB and pistol ban (both done by executive fiat).
Hopefully, Having learned from what the Liberals did, Pierre will make AR-15s non restricted category and also end the registry (and back doornregistrues like universal backgound checks) for handguns (so that no future Liberal government will have any idea which law abiding Canadian has which firearm).
*cough* -carbon fiber PLA 3D printed barrels- *cough* shhhhh government
Would have been interesting to do an accuracy test before and after.
Accuracy would absolutely suffer in this regard. there's no questions about that. More meaningful would be the group change as it heat up within the first 2-300 rounds.
You guys have some of the best research videos. Thanks.
I wouldn’t exactly call it “research”
One thing I’ve noticed on one of my cf barreled rifles (with the scope sitting almost on the barrel), is that after 20rnds it slings shots. Found out it was swelling from heat expansion and putting pressure on the scope
Very cool and informative content. Keep it up MDT.
I think it would be important to do a burn down between a carbon and steel barrel to see if the wear amount is different.
The thing about carbon fiber is that its awful at heat transfer so if your thermal camera was showing 4-500 degrees on the outside theres a good chance the actual barrel got much hotter. Would be interesting to bore scope it and see the results after a good cleaning.
Very cool and informative content. Keep it up MDT.. Would have been interesting to do an accuracy test before and after..
Awesome, thanks for doing things like this.
Y’all have awesome content, flat out cool
Interesting and valuable test. The only extra I would have done would have been shooting a few groups for accuracy after the barrel had cooled back down but from your examination afterwards I doubt you'd see a measurable difference. Nice work.
Thank you!
Very interesting! Thanks for doing this.
What does MDT do with all the test guns an hardware. It would be cool if you can visit a show room full of al the tests they ran
Very interesting content, thanks for the video. Cheers, from France
That's a gorgeous stock and it looks really slick with that barrel.
I really like the look of that stock. MDT and Lone Peak for the Win!
Thanks for the test!
Love my MDT!
Cool i was worried my barrel wouldn't work on that volcano trip i was planning 😅
😂
Interesting, thanks for sharing 😎
Carbon fiber laminate actualy contracts vs steel that expands as it heats up that is probably why there is no delamination between the two , still its impressive they use such high temperature resin.
Any decent carpenter knows the strength ratings of different kinds of wood. Your hardwoods are going to come from a rainforest
Great testing.
great video!
Very very interesting, man I would like to the see accuracy before and after.
Wish you would have measured the temperature of the inside of the barrel and compared it to a steel barrel of similar weight.
Nice observation and gets me thinking about my next build, but while I'm waiting on that...Let me get that brass.😅
omg this is exactly what I wanted to see. I always wonder what happen with high volume fire. I always stop when the chamber stainless part get hot to touch.
How many rounds did it take to reach peak temp?
I really wish y'all would have done accuracy before and after!
It depends on the alloy of steel and titanium used, but theres a good chance the titanium has a low rate of thermal expansion than the steel, plus the titanium would be cooling off more quickly than the steel since it has a significant surface exposed to air.
That was what I was thinking too about why some of the cases where sticking
Big fan of Brazil 🇧🇷👍🏾
Sorry if I missed it who is the manufacturer of that barrel?
Proof research
Just a thought regarding stuck casings! I wonder if the heat from action is being transferred to the brass casing, causing some expansion to brass and lodging them in place?!?! Thoughts?
Oh wow... The mating area of composite to metal is ribbed to create more surface area or contact area... clever... I always just assumed it would be flat or straight...
Throughout the test did the carbon fiber portion always showed lower temperature? Did you mention what manufacturers built the barrel?
what temp was the brass? it may have been what was expanding most.
I read one barrel maker say something about 900 degrees, no idea what that was in relation to, presumably some kind of curing or bonding
Always a fun of distraction 😊. Thanks guys❤
Thank you for watching!!
You really hyped us up with that thumbnail
I'm still trying to figure out how my man cut a barrel in half long ways with a CNC Mill as it was chucked into two vices lol.🤣
so fun fact. the 787 has less insulation then other aluminum planes due to the insulative propertys of carbon fiber
Thank you.
I love that stock!!
We need to see you test a carbon barrel ar15. 1000 rd heat test!
would be cool to see a 10000 round test in the future.
Very few rounds will go that long and retain accurately. 223 is one, 308 can sometimes.
A 6.5 Creed only has a typical barrel life of 2500-3500 rounds. Most likely closer to 2000 if treated like this.
When did you film this?! It's like 115 degrees today yet it's snowing in your video
Can you guys make this stock for savage 10 rifles?
Could you do this with .233 or .308 in full auto/rapid fire?
would be more intersted in real world application ; rapid fire 25-50 rds.....group shot, andother rapid strip, group test etc. Would be really interesting for accurancy tests over 200-300 rds. Appreciate all the work you guys do!
amazing
Still waiting for the TIMBR FRONTIER STOCK for the Savage action. Getting close to a year now, since you told me, it would be ready last. Just check your website for any updates and I didn’t even see the solid walnut stock you’re shooting here.
Totally off topic but that may be the best looking rifle I've ever seen
Forget about the barrel, when can i buy that sweet wood mdt chassis?
Wish you flung some for groups before cutting it open. Wouldve been interesting
Would have been far more interesting to see the accuracy effect before and after
what about the temperature of the steel component of the barrel
Is walnut going to be available soon?
How long until barrel made from carbon fiber only? Possible?
It's not necessarily that the carbon fiber isn't as hot, it's just that it's not conducting the heat as quickly. Steel is really low in thermal conductivity for metals down in the 15 to 45 W/m-K range depending on the particular alloy. Carbon fiber from what I've been able to find ranges between 6 and .4 W/m-K though due to the nature of composites, that's a lot harder to find good information on.
As of 8/19/23 it cost them $2150 in ammo to run this test. I stack Hornady 140 ELDs, I cried inside...
Would adding a thin metal feed ramp resolve the eject issue? Not a fabricator.
What did the speeds look like? Any changes as it heated up?
It stayed pretty consistent throughout the test.
When can I get my hands on one of these bad ass walnut stocks?
Can you send me one of those mags you used in the video
This just confirms the confidence I have in my CF barrel. I run a suppressor on a 20” Proof Research CF 22 Nosler AR15 for hog hunting. Even after several mags the barrel is cool to the touch, the can would deglove your hand. I’ve been very impressed with the accuracy(sub moa) and speeds (3500fps factory 55gr).
Love my 20” Proof CF barrel on my AR-10 .308. Sub MOA with Fed GMM and Berger OTMs. My Thunder Beast Magnus should be available in a couple more months.
@@shadrach314 my next build is a 6.5cm AR10, gonna do a Proof CF, probably small frame to keep it light and compact.
It is cool to the touch becasue the carbon fiber is acting like an insulator. It is holding the heat in instead of allowing it to radiat freely. You have effectively put a permanent oven mitt on the barrel. It staying cool to the touch is not a good sign it is a bad sign that heat is not being allowed to conduct away from the bore.
@@buckaroobonsi555So the insulation makes a better oven! And while you don't SEE the pencil barrel drooping, something still has to give. Considering how the gas tube was designed as a failure point to keep the receiver from throwing metal in your face...
Brass expanding?
Don't you guys have a 3 foot scope mount...? Sounds like the perfect opportunity to use it to shoot 100, 10-shot groups...
What was the manufacturer of this barrel?
Where did you find snow? its 107 out.
Anyone try doing this test with 8,10, or 12.5 inch barrel CF with 300 blackout?
You had to use ELD-m 😭 why not use poo poo ammo
Which company made that carbon fiber barrel?
You could use the bullets pack pressure to charge a switch that open and closes the bipod or unipod
Sage Dynamics has entered the chat for the burn down.
What barrel brand did they use ?
It is a blind test.
I wonder if its possible to make a carbon fiber barel last 50,000 rounds of .308 or 100,000 rounds of 5.56mm.
No. There's still a steel barrel. The carbon is just wrapped on it. 😂
What is the leupold optic on there ?
It is a VX-5hd
Who makes the barrel?
PROOF Research
Me: I dream of shooting guns all day and getting paid to do it.
Gods of fate: makes me that guy. Stand, shoot, cycle, shoot, reload, repeat.
Hey, at least this carbon/titanium combo didn't implode
cam pov: that friendly sniper that camps at the back for the whole game.
How does it do in freezing temps?
It held up pretty good in the cold temperatures we put it through
the cases sticking could be from the stainless steel heating up and expanding just enough to hold on to the brass
Carbon ring in the barrel will cause excessive pressure.
Basically, they were getting pressure signs and ignored them....
Chamber is likely cut on the tight side for accuracy. Not that it's necessary, but it seems to be the standard.
Strikes me that accuracy would’ve been more of a key performance indicator rather than rapid multiple round firing…
What manufacturer was the barrel was that a proof ?
We did a blind test on this one
The cases getting stuck was a result of the steel in the barrel expanding due to the heat.
The hotter the barrel, the velocity should be the same if not higher. Right?
a bucket on the ground for spent shells ?
I really thought the carbon fiber would start to delaminate or something. Thats over 280 celsius. Crazy technology.
It just burns typically. Have to get it so hot the resin reaches its ignition temp.
If you were worried about bending the barrel, snow would have done more than the heat. Stress in steel comes from cooling too quick.
Definitely designed for cold weather
Well taking IR temperature reading from the outside of the carbon fiber jacket will not represent the temperature of the steel inner. Too bad you did not do a bore scope before and after views. I guess you cannot think of everything. Too many FTE and hard bolt lifts for me. I was wondering how thick the inner steel barrels were, and this showed it well.
Interesting experiment. I realize that you couldn’t do accuracy testing throughout the experiment, but I’m thinking you could have done before and after accuracy groupings.
Fair point
Why would you not do a group test before and after..
We were more focused on how the barrel would hold up to the extreme test.