Something to note is that your temp readings were VERY off. A laser thermometer cannot read a reflective surface accurately. At 4:00 when you pour water on it, that is how water reacts when a surface is ~400f. Also, stainless steel turns brown at 480f. The light brown it was turning + the water instantly beading means that barrel was around 400 degrees LONG before you temped it at ~400. For more proof, look at how the temp jumped little by little every 100 rounds until you did the bacon. Once the bacon blacked the barrel the temp jumped 120f in 100 rounds. Getting hotter should mean more heat energy is released into the air (thermodynamics) so a sudden jump of 100+f simply can't happen. This doesn't really change the results or anything, but I wanted it pointed out for future tests.

@MDTTAC

2 жыл бұрын

Thank you for the feedback!

@snipersam204

2 жыл бұрын

Ya they should try temp sticks.

@userJohnSmith

2 жыл бұрын

@@MDTTAC Yeah this is a serious problem for a lot of applications I deal with (opto-mechanical engineer). We do a lot of shrink fit and precision work where we need to know how many microns something has shifted. Lasers are great on matte surfaces but any exposed metal and you're data is garbage (probably halfway between room and the real temp). That barrel was super toasty.

@MDTTAC

2 жыл бұрын

@@userJohnSmith Yes, it's a thing for sure!

@dalemyers9045

2 жыл бұрын

@locky balboa Thermodynamics gave me hell at GaTech! I appreciate your insights. 😉

That’s a lot of 6.5 ammunition that is still very difficult to find let alone to afford. With that said great test.

@MDTTAC

2 жыл бұрын

Thank you so much!

@JohnMuise

2 жыл бұрын

That’s why MDT had to raise prices XD

@teeloeur8962

2 жыл бұрын

That is what I was thinking.

That was an awesome video. Now post the barrel to CGN "IBI Barrel, mint condition only brought out once, deal of the year!"

@lukeabram1674

2 жыл бұрын

No low ballers i know what I got

@AmanVerma-bt7fr

2 жыл бұрын

Loooooool this is sooo true 🇨🇦🇨🇳 might aswell post a China flag when posting canadian nowadays lol

@infidel202

2 жыл бұрын

Would they notice the smell of bacon

@darkstar9008

2 жыл бұрын

Gunpost for double the msrp

I remeber back when my best friend an I were so hyped we bought your first ever chassis for his 700. This was many moons ago. I look how far you guys have come now and I'm so proud. A Canadian company we can all be proud of.

@MDTTAC

2 жыл бұрын

Thank you so much for the kind words!

Imagine being the neighbours and hearing that for a few hours you'd think they're just burning money

@MDTTAC

2 жыл бұрын

Nobody is around those parts for miles!

Attach a thermocouple to the barrel next time and get true readings. If you use a data logger and have a vibration sensor on it as well you could easily plot temp over time or temp vs number of shots fired.

at +/- 7:30 mark you have comet tails on the last few shots you fired. Wild dispersion of the last few shots is from the lead coming out the nose of the bullet. You see it on the paper around the last bullet holes. Textbook example of the lead beginning to melt and being ejected out the nose as the bullet decelerates. Heat of the chamber and barrel, and friction of flight leading to the melting of the core. Best example I have seen of this.

@gitfiddle001

2 жыл бұрын

I was hoping someone could explain that, I was curious if it may have been the copper oxidizing and flaking off the jacket, or just carbon being pulled out of the bore/imbedding in the heat softened jacket. thanks for the explanation, thats wild!

Geez. Was wondering where all of the 6.5 ammo went! Love these videos though so worth it.

@MDTTAC

2 жыл бұрын

Thank you so much for the kind words!

No wonder I can't find any 6.5 ammo! Lol

Try lapping it to see if the accuracy improves. Also, from a metallurgical point of view, steel typically starts running colors(or bluing) at around 400-450 degrees for a straw or light yellow. When you commented your barrel was turning 'brown', you were well above 400F by that point. Potentially closer to 500, or even above that. Steel bluing colors is, sadly, something a lot of firearms enthusiasts really don't do a lot of research or even reading into at all, but as with any precision tool it's incredibly important to understand even the more subtle aspects of when there's any kind of heating involved.

Those are all your Black Friday magazine on table for 2022 😂. Love your products !

once the carbon from the bacon stuck the barrel the optical thermometer started to read more accurately. they dont read bare stainless very well

There is no way it was 200°f and water was vaporizing on impact. Those ir sensors are not reliable on shiny stainless from my experience (15 years in commercial refrigeration) The reason you finally kick up temp was after you cooked the bacon and left a better surface for the gun to read. I would say that barrel was minimum 300 when you poured the water

Great Video, Well done Ryan. Thank You for using our Targets for the Video. Looks like our targets held up fairly well for 1000 rounds. Good Job 👍🏻👍🏻👍🏻

So under just about worst case conditions the damage still leaves a barrel which is mostly fine for most users if you don't need maximum precision. I wonder what a nitrided barrel would look like under the same stress?

This video has given me so much information on barrel life and what a barrel can and can't handle. Especially watching your groups after every 100 rounds. Extremely informative video! Thank you guys. I'll be saving this video

Thank you for the disclaimer. Now I can watch this with eased mind.

This is a great way to advertise the company. Keep it up. Happy with my MDT chassis 👍👍

Nice touch putting the metric readings as well as the imperial ones. Us non american gun enthousiasts always appreciate it, thanks guys !

@MDTTAC

2 жыл бұрын

No problem!

Now we need a comparison series: How much longer does it take for fluted barrels to heat up? Does cold hammer forged handle the heat better? Would a lighter barrel with no flutes cool down quicker than a fluted heavy barrel? Would be an expensive series with 6.5CM lol.

@theodorehunter4765

2 жыл бұрын

A fluted barrel should heat up faster, because there is less material to heat up, but it will also cool down faster, because there is more surface area for heat to escape. Over a long string of fire, it's hard to say if it will be overall cooler or warmer than a non-fluted barrel. Forging methods and materials are probably going to have a larger effect on how the barrel warps while hot than how fast or slow they heat or cool. A lighter barrel (as in a thinner profile barrel) is going to both heat up faster and cool down slower, because it will have less metal to heat up and less surface area to radiate heat away. That's why most target rifles use a larger diameter barrel. Now, if your lighter barrel is lighter due to being Carbon Fiber wrapped, then it gets tricky. Carbon Fiber doesn't hold heat as well, so some people say it will cool your barrel down faster. Others say it will insulate the core, causing the barrel to heat up faster and stay hot longer. A bit of that probably has to do with the quality of the barrel and how the Carbon Fiber is bonded to the barrel. Carbon Fiber's main advantage from an accuracy standpoint is that it is more rigid than steel. Theoretically, the rigidity of the Carbon Fiber will keep the barrel from warping as much when it gets hot. (It's also lighter, so it's easier to drag to and from the range/woods.) My target rifle has a heavy bull barrel. My hunting rifle has a Carbon Fiber barrel.

@br4713

2 жыл бұрын

Why dont u make this experiment with your own barrel? lol

Great job! The channel is going to skyrocket bc (1) the brand and (2) that hard work. One important test that has YET to be done is a carbon fiber barrel torture test. The debate hasn't yet been settled and it's been going on for years!

@MDTTAC

2 жыл бұрын

Thank you so much for the kind words, and maybe we can do something like that in the future.

Thanks for the video . I’m never going to be worried about ruining my barrel again

Another great topic from the MDT team

Even after 1000k rounds it shoots tighter than most people will shoot at.

@bjornegan6421

Жыл бұрын

one million

@lurebenson7722

Жыл бұрын

I am saying this with humor the AK and Mosin fanboys think these garbage guns with 1- and 2-foot groups at 50 yards is benchrest accuracy.

Best gun content on youtube in aspect of editing and informativity! keep it up guys!

@MDTTAC

Жыл бұрын

Thank you so much!

Thanks for this test guys, y'all at MDT ROCK!!!!

I'm wondering if you did your load development again for that barrel, you might get it to group well again. I've had barrels wear and result in the same ammo producing a different barrel time. Tweaking my loads in those instances (reducing the charge to produce the same barrel time) brought the groups back in again.

@Dan-di9jd

2 жыл бұрын

There’s a follow up video where a guy gave it a good cleaning and it shot under 1 moa still. So the barrel is still in good shape.

@lmbear

Жыл бұрын

@@Dan-di9jd That's what I'd expect. I remember a friend telling me the 6.5 Creedmoor is a "barrel burner" and it would be burnt out after 1,000 rounds. I told him bs. I shot more than 2,000 rounds before I saw accuracy degrading. YMMV.. Just to give you an idea on how my barrel was, at 1,200 rounds, it was still shooting .6 moa 10 shot groups. I shot a lot of 10 shot groups with that rifle, and it did just fine.

Such an awesome video, would love more of this!

@MDTTAC

2 жыл бұрын

Thank you so much, we will do more soon!

Thank you MTD for doing this video! This was something I was always curious about but could never afford to do. Good job guys. P.S. I am a proud owner of MTD products. I love your stuff.

@MDTTAC

2 жыл бұрын

Thank you so much for the kind words!

@EnkeiTenjin

2 жыл бұрын

MDT * lol

What a lucky Mo-Fo!!! That must of been an awesome day! Lots of trigger time , burning a barrel, and doing Science!!!! See kids this is what happens when you like school!!! Lol Another great video from the boys/Gals at MDT!!! 🍻😷👍

I've always wondered about this! Great content/video!

That was fun.. Costly, but a really clever and worthy test.outside of adding bacon or water, that could or did cause a warpage by cooling on one side over the other, outside of that, the bacon cooking, all that did was make me hungry for some bacon, LOL... Thank for taking the time to rock & roll on this one..

Great video. Do you have any info comparing the different barrel materials, especially some of the carbons?

All the reloaders are just fizzing at the thought of finding that brass lol

@MDTTAC

2 жыл бұрын

Yup, but it will go on to be more ammo again!

Great video.Enjoyed it and learned from it.

I know it's a bit late to be thinking about it, but if you ever did another test like this it would be interesting to see if there is a velocity change each time you stopped to shoot a group and then after it was cleaned to see if the velocity had changed again or it had returned to a previous fps range. I am curious because I only personally know a couple people who have shot a barrel out and they've all said the velocity drops dramatically

Appreciate your work !!

@MDTTAC

2 жыл бұрын

Thank you!

Very interesting video.. I think this proves the opposite of what everyone thinks.. that barrels aren’t as fragile as everyone thinks they are.. so many guys at the range shoot 3 shots and then have to let it cool down for 20 minutes so they don’t “wreck” It

One thing, did the mirage off that barrel not obstruct your view at all on the target? I've had that happen w/ suppressors, or even hot barrels.. Hell even w/ cerakote.

quite possibly the best shot ive ever seen. seriously. the bacon ..on the gun while shooting and the sizzlin smoke comin off. thats great sirs.. cheers

Diamond only at your second record group and I'm curious, how much of that wander could be from optics mount loosening? Like I said, I'm still early and don't know if you address it later. Oh, and THANKS for showing us this kind of destructive testing! Not to see stuff die but to see how it lives under pressure.

Awesome! I wonder do you have the resources to run this test on a hammer-forged carbon steel barrel ? I am very curious.

I wounder if no water was put on the hot barrel and it was left to cool down without being quenched would there still be cracks ?

Mostly wondering about the pattern the last bullets left around on the paper, powder residue in a spiral shape based on the heat?

I noticed the brake I’ve seen it a couple times before. I’m guessing the testing was related to the brake?

@MDTTAC

2 жыл бұрын

OOOO, we can't say, but good catch!

Wouldn’t the rapid quenching of the barrel by pouring water over it change the crystalline structure of the metal causing warping and make the overall performance worse? I’m no metallurgist but maybe that something to do with the overall change in moa compared to letting the barrel cool down on its own

@jonenglish6617

2 жыл бұрын

not hot enough for that.

@narutobroken

2 жыл бұрын

If it was close to 2000° then maybe but not around 500

@Chevsilverado

Жыл бұрын

Not enough heat and not enough water.

Of course I hear the Mark Rober background music on this. Well done.

@erik cortina is gunna have a fit about that barrel not being clean!.. and rightfully so, still looked like a lot of carbon in it to me. Great job putting that much effort into a test like that! I was definitely expecting to see more wear to the throat.

@br4713

2 жыл бұрын

Well Erik Cortina's groups are 4 times smaller, he's just living on another planet

That was great. Always wondered how effective it was to burn out a barrel.

As a blade smith I cringed when you poured water on that barrel while it was hot. That alone can cause cracking. Nice test Thanks for sacrificing all that ammo for us.

Subbed. Great content.

@MDTTAC

2 жыл бұрын

Thank you for the kind words!

The amount of money 1000 rounds of 6.5 creed goes for today is in and of itself insane

I am having trouble parsing the data. After the 100rds you shot an average of 0.960moa. But no moa data was given for the groups shot before and during the test? Even the group after 50rds was larger than 1moa. Was there an initial group shot right after zeroing, the one in the middle of the right target, what was its size? Based on your conclusion, do you think letting the barrel cool completely after the 50rds of rapid fire would bring the group size down from the 1.5ish moa shot while hot to the unknown initial group size? Additionally, what was the specs on the barrel? Button rifled and nitrided? Who made it?

Don't you damage the steel structure and create tensions when cooling the barrel down with water on some parts?

Great Video Man.. 😎

That ammo is pretty fancy for this LOL. Cool vid bro!

I really enjoy the testing videos you guys do keep them coming

@MDTTAC

2 жыл бұрын

Thank you!

I'm impressed the barrel survived so well. I've had a Sako finbear in .270win cause forewood smoking from radiant heat blasting away at a mob of pigs here in Australia. Stopped shooting to preserve the rifle. Only took about 14 rounds

@waldo713

2 жыл бұрын

Hell yeah Shane smash those pigs! Fairly light profile barrel mate?

@TechieTard

2 жыл бұрын

A 270 Win or Mag? It's a pretty thin walled Win for 14 rounds....at least I would think.

After cleaning, don't you need to do a number of fouling shots before trying to group?

Awesome and very intresting to see!

Very good post. Thank you.

Great video! I appreciate learning on your dollar. Although im surely jealous of all the rounds you get to fire! 👍👍

Point taken on barrels heating up.Thanks ! What I use is my hand ; if I can't grab the barrel and hold it it's time to let it cool down. Food for thought though I wonder if black barrels heat up faster than stainless steel one's ?

This is an interesting video. I wonder if the shifting of the groups was in part due to fouling. Looks like you went in totally clean, so it may be that the barrel actually gets more precise before it gets worse. A few of those groups earlier in the test looked pretty decent.

@JG54206

2 жыл бұрын

I’ve always heard that barrels do “wear in” or “break in” so to speak. I’ve also heard that over brushing a barrel and over cleaning in will prematurely wear it out. It doesn’t surprise me that a barrel tends to get more accurate after you put some rounds through it. Bullets being sent down the bore are softer than the steel and therefore swage down to fit the barrel but I imagine that repeated firing will tend to wear down any spots where the barrel might be just a tiny bit tighter, or wear the edges of the lands and grooves down to be smoother and more uniform. As precisely as barrels are made there is still a spec range for them just like any part so some will be on the lower end of the spec range and some on the higher end and some in the middle but once you put some use through them they will begin to become more consistent.

@CiGambino

2 жыл бұрын

@@JG54206 probably true. I think the materials left behind by the bullet (copper fouling and carbon fouling) will begin to produce higher consistency. You gotta clean out the carbon, but also want to leave the copper in there. You sort of establish an equilibrium and leave it at that. This test was more about heat and durability. I'm not surprised in the result of barrel heating as that would create pronounced barrel whip.

Can you do a repeat on your carbon fibre wrapped barrels pls? Thanks!

@MDTTAC

2 жыл бұрын

That could be a possible follow-up.

Is there a way to increase the life of 6.5cm barrel by applying some magical substance to reduce heat and wait between shots the barrel to cool down.

Awesome test guys, I was curious though on what kind of brake you had on that gun? It did not look like the standard MDT one. Thank you

@MDTTAC

2 жыл бұрын

Secret for now.....

rifle bacon, my favorite breakfast. great vid!

Who made the barrel??

Finally a video worth watching!! I still don’t think the barrel is junk some groups are sub MOA!

@joearledge1

2 жыл бұрын

Yeah even the initial groups weren't very impressive... no horrible but nothing to brag about, I'd say the barrel is still good for hunting and fun, and based on the initial groups I'd say it wasn't competition grade to start with, at least not with that ammo. Great video though guys, never thought a bolt gun could get that hot. Definitely wish I would've thought about cooking bacon on my barrel when I was a machine gunner lol

You know if you cut the star completely out of the target you win the giant purple teddy bear.

Is that the gen 2 cyke pod? HD or regular version?

I love how they used the thickest barrel possible to make sure it took the most amount of ammunition.

Great video !!

@MDTTAC

2 жыл бұрын

Thanks! Glad you enjoyed it :)

Nice content! New SUB!

That is the most Canadian dude ever

Bacon 🥓, bullets and barrels 😎😁 what a combo. That was a great video and really interesting to watch 🥰

@JonCresswellUk

2 жыл бұрын

A good bit of trigger time too 😊😊

@MDTTAC

2 жыл бұрын

Always a good combo!

What is that spiraling burn marks on the higher round hits?

Looks like thats the final range trip to the Abby rod and gun club for a while ehh? Need to bring a underwater spear gun now.... Seriously though, Just shows you the resilience of a IBI barrel, 1000 rounds, over 400 degrees and its still just a hair over 1'' at 100. That is pretty damn impressive.

Great video! I somehow bet that barrel ended up on Gun Broker,... "Lightly Used". Lol

It’s amazing how he found a way to make a bolt action rifle semi-auto

awesome content

Very interesting vid...thanks...Wow! How to destruct a barrel!

In not as gun savvy as most people that watch this but I still enjoy shooting. However I have a question hoping to be answered. Could the difference in the grouping but caused front the scope backing out or becoming loose vs the barrel. Or is it like a combination of all?

@MDTTAC

2 жыл бұрын

Typically when things like scopes and barrels come loose it is extreme and very noticeable.

@logantraxler7

2 жыл бұрын

@@MDTTAC oh okay! Thanks for responding! I’ve just always wondered that. After watch the video again it became obvious that it was the barrel overheating because the grouping became closer after cooling down. Great vid and again, thanks for responding!

@logantraxler7

2 жыл бұрын

@@MDTTAC also, your video production is amazing and you should definitely dive more into content creation with your brand!

Down in Florida and I’m sure other places where it averages 90 I noticed that tends to happen quicker I put 200 rounds through 6.5 doing some shooting out at 100-200 yds and the last 10 rounds weren’t even impacting the target left me confused till I felt how hot that barrel was

That is an absolutely beautiful gun

Perfect my friend

great information to know, when I 0 in my guns I usually keep going till I have it on 0 but I may give it time to cool down I don't do anywhere near 1000 rounds to 0 but I do maybe a mags worth of ammo to find it some times.

Need to watch those edits... the government may try to ban your rapid fire weapon that's using high round clips 😂😂

This is excellent content, and I love to see it. I am a little surprised though that you guys went with 6.5 mememore instead of a barrel burner like 6.5 PRC. Ammo availability I'm guessing?

@MDTTAC

2 жыл бұрын

Thank you, we were testing our brake profile for carbon build-up and decided to make a quick video.

@Pifferfish

2 жыл бұрын

@@MDTTAC you guys make great products, thanks for the insight into your testing.

@MDTTAC

2 жыл бұрын

@@Pifferfish Thank you! Glad you enjoyed the video.

What ammo shortage?

Shoots better than I expected at the end - still close ranger hunter 👍

FYI, any type of uneven heating or cooling of the barrel could potentially cause cracks or warping. As to how severe the variation would need to be to cause noticeable or measurable effect.... I have no idea

Super cool!

0:25 it's so beautiful I want to cry 🥺🥺🥺

What barrel did y'all use for the testing?

@MDTTAC

2 жыл бұрын

International barrels (IBI)

@brazzy1467

2 жыл бұрын

@@MDTTAC sweet I have one of their barrel's on my .308.

Nothing quite like the smell of gunpowder and bacon in the morning.

Interesting notes about a laser thermometer and general thermodynamics of the test and measurement: - The laser has nothing to do with the temperature reading, and is actually super misleading. The thermometer samples an area in front of the IR lens (offset from the laser) in an expanding "cone" of coverage. This means the barrel is only a small part of the area being measured, and the reading (rough average of the area at that distance) will be much lower than barrel temperature. For the most accurate reading of a point, place the IR lens (not the laser!) as close to the surface as possible. But ideally, just use a thermocouple. - The color of a surface matters a lot, because this changes it's infrared emissivity. Shiny metallic surfaces have a very low emissivity, matte black surfaces have a very high emissivity. The increase in measured temperature from 400-1000 rounds is then probably not a result of an actual increase in barrel temperature (it's thermal mass is low, and it probably hit thermal equilibrium with your rate of fire balancing convection at a few hundred rounds), but a result in the dramatic change in emissivity (browning/blackening grease) of the barrel resulting in more radiated energy measured by the infrared thermometer. Actually I'd bet a lot that as the barrel darkened, it's temperature actually started decreasing again as radiative cooling joined convection as a substantial path for heat out of the barrel, and lowered the equilibrium temperature with your rate of fire and heat input.

What bore scope were you using??

How many more rounds do you think you would you get out of it if you keep the barrel cool

@alandennis5337

2 жыл бұрын

2000