better than carbon fiber submarine

@mateokins9

Жыл бұрын

That was well timed. Definitely not too soon…

@Picasofly

11 ай бұрын

Nice bro. You won the internet today.

@domitnate1997

11 ай бұрын

The sub shouldve taken notes on how they bonded the titanium and carbon fiber

@PhilipThomas-xphilip

11 ай бұрын

most underrated comment ever! :)

@tylerbate284

11 ай бұрын

Lol

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

@ethanbarnes3973

Жыл бұрын

Right that scope/mount took a pounding!

@uoislame

Жыл бұрын

yeah this is the real test. accuracy before and after

@anonymousf454

Жыл бұрын

Exactly, that would have been sensible. Guess they will have to do another 1000 rounds..lol

@jth_printed_designs

Жыл бұрын

Blows my mind that they wouldn’t shoot groupings before and after

@huntersmark917

Жыл бұрын

This is what I was going to say

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.

@kh8655

Жыл бұрын

that just sounds like saying it's not as hot with extra steps

@YoureSoVane

Жыл бұрын

​@@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.

@kh8655

Жыл бұрын

@@YoureSoVane okay but the carbon fiber still isn't as hot because of it's lack of thermal conductivity

@YoureSoVane

Жыл бұрын

@@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.

@kh8655

Жыл бұрын

@@YoureSoVane and the carbon fiber was a lower temperature than the metal. there's your measurement

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.

@rickydicknut6352

7 күн бұрын

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!

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.

@rkwjunior2298

Жыл бұрын

Clearly the Carbon to Steel ratio was admirable in this test.

@cr0ss0ut

11 ай бұрын

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.

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.

@renatosureal

Жыл бұрын

Don;t go to BRasil ... need a new COUNTRY first ..

@Milkywayboy

Жыл бұрын

America needs a new government too

@FinalLugiaGuardian

11 ай бұрын

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).

@zoewilliams2010

2 ай бұрын

*cough* -carbon fiber PLA 3D printed barrels- *cough* shhhhh government

You guys have some of the best research videos. Thanks.

@chrisgreenly9796

Жыл бұрын

I wouldn’t exactly call it “research”

Very cool and informative content. Keep it up MDT.

Definitely should have done before and after grouping. Missed opportunity.

Would have been interesting to do an accuracy test before and after.

@cr0ss0ut

11 ай бұрын

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.

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

Awesome, thanks for doing things like this.

Very cool and informative content. Keep it up MDT.. Would have been interesting to do an accuracy test before and after..

Y’all have awesome content, flat out cool

Very interesting! Thanks for doing this.

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.

That's a gorgeous stock and it looks really slick with that barrel.

Cool i was worried my barrel wouldn't work on that volcano trip i was planning 😅

@MDTTAC

11 ай бұрын

😂

Thanks for the test!

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.

@MDTTAC

11 ай бұрын

Thank you!

Very interesting content, thanks for the video. Cheers, from France

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.

Love my MDT!

I really like the look of that stock. MDT and Lone Peak for the Win!

Great testing.

Interesting, thanks for sharing 😎

great video!

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

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.🤣

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.

@luislongoria6621

11 ай бұрын

Any decent carpenter knows the strength ratings of different kinds of wood. Your hardwoods are going to come from a rainforest

You really hyped us up with that thumbnail

Nice observation and gets me thinking about my next build, but while I'm waiting on that...Let me get that brass.😅

Very very interesting, man I would like to the see accuracy before and after.

I love that stock!!

Big fan of Brazil 🇧🇷👍🏾

Wish you would have measured the temperature of the inside of the barrel and compared it to a steel barrel of similar weight.

Thank you.

would be cool to see a 10000 round test in the future.

@leftyeh6495

11 ай бұрын

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.

Always a fun of distraction 😊. Thanks guys❤

@MDTTAC

Жыл бұрын

Thank you for watching!!

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.

amazing

I really wish y'all would have done accuracy before and after!

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.

Totally off topic but that may be the best looking rifle I've ever seen

How many rounds did it take to reach peak temp?

so fun fact. the 787 has less insulation then other aluminum planes due to the insulative propertys of carbon fiber

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.

@KC-7mm

Жыл бұрын

That was what I was thinking too about why some of the cases where sticking

Sorry if I missed it who is the manufacturer of that barrel?

@blakenoble9468

Ай бұрын

Proof research

cam pov: that friendly sniper that camps at the back for the whole game.

Sage Dynamics has entered the chat for the burn down.

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!

As of 8/19/23 it cost them $2150 in ammo to run this test. I stack Hornady 140 ELDs, I cried inside...

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...

We need to see you test a carbon barrel ar15. 1000 rd heat test!

what temp was the brass? it may have been what was expanding most.

Throughout the test did the carbon fiber portion always showed lower temperature? Did you mention what manufacturers built the barrel?

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.

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

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?

Hey, at least this carbon/titanium combo didn't implode

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?

Wish you flung some for groups before cutting it open. Wouldve been interesting

When can I get my hands on one of these bad ass walnut stocks?

Is walnut going to be available soon?

Brass expanding?

what about the temperature of the steel component of the barrel

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.

Would have been far more interesting to see the accuracy effect before and after

You had to use ELD-m 😭 why not use poo poo ammo

Would adding a thin metal feed ramp resolve the eject issue? Not a fabricator.

Send the barrel down to the titanic first and then try a 1000rds…. I said it!

Could you do this with .233 or .308 in full auto/rapid fire?

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).

@shadrach314

Жыл бұрын

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.

@rossomeness3549

Жыл бұрын

@@shadrach314 my next build is a 6.5cm AR10, gonna do a Proof CF, probably small frame to keep it light and compact.

@buckaroobonsi555

Жыл бұрын

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.

@luislongoria6621

11 ай бұрын

​@@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...

Wow that was an expensive test🤣

Forget about the barrel, when can i buy that sweet wood mdt chassis?

Can you send me one of those mags you used in the video

I call dibs on the brass!!!

This barrel looks to be from proof research i believe

Strikes me that accuracy would’ve been more of a key performance indicator rather than rapid multiple round firing…

The cases getting stuck was a result of the steel in the barrel expanding due to the heat.

Who makes the barrel?

@mysterioanonymous3206

Жыл бұрын

PROOF Research

With a bolt gun!? That can't be fun yo lol.

What was the manufacturer of this barrel?

What did the speeds look like? Any changes as it heated up?

@MDTTAC

Жыл бұрын

It stayed pretty consistent throughout the test.

So that’s where all the 140 grain 6.5 creed went!

You could use the bullets pack pressure to charge a switch that open and closes the bipod or unipod

How long until barrel made from carbon fiber only? Possible?

@PROOF Research

good 👍🏻

@MDTTAC

11 ай бұрын

Thanks 😊

Anyone try doing this test with 8,10, or 12.5 inch barrel CF with 300 blackout?

Where did you find snow? its 107 out.

Which company made that carbon fiber barrel?

I really thought the carbon fiber would start to delaminate or something. Thats over 280 celsius. Crazy technology.

@leftyeh6495

11 ай бұрын

It just burns typically. Have to get it so hot the resin reaches its ignition temp.

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 is the leupold optic on there ?

@MDTTAC

8 ай бұрын

It is a VX-5hd

If you were worried about bending the barrel, snow would have done more than the heat. Stress in steel comes from cooling too quick.

@luislongoria6621

11 ай бұрын

Definitely designed for cold weather

What barrel brand did they use ?

@MDTTAC

Жыл бұрын

It is a blind test.

That carbon fiber is keeping the heat in.