Home Shop Rifling

Home Shop Rifling - Part 2

Рет қаралды 216,471

5 жыл бұрын

Check out Rifling Part 3!! • Home Shop Rifling THRE...
I recorded and edited the majority of this video 14 months ago, but rifling buttons in the marketplace have gone through a huge change. So some of the information is outdated but there is good stuff in there as well so I decided to share. People keep asking why heat treat before rifling. Didn't think I had room to address it here but here it is! A good barrel needs to be strong and tough. 4140 or 4150 steel at Rc 28-32 is a good hardness range. While being harder/stronger makes it harder for the button to go through because it takes more force to swage the rifling into the steel, the increased hardness also reduces the friction between the button and the steel and makes it easier to go through. But in the contest between reduced friction and increased force for swaging, I think the latter wins. But so what? It's a bit harder to push the button through but who cares? The machine doesn't care and the button survives just fine, and in the end you have a good, strong, tough barrel. Another HUGE reason is the tendency of the button to pick up steel from the bore if it's not strong enough. It involves coefficients of friction and normal forces, and is a little technical. Another issue with doing the hardening after? The main reason is that heat treating a barrel requires taking it to 1550 deg. F and more, and then quenching. Then tempering at around 1200 deg. F. Good luck maintaining that beautiful bore you just rifled after a process like that! And good luck keeping it straight! The other main reason for not heat treating after rifling is that all that strain-hardened surface the bore had from the button rifling process is now gone, stress-relieved during the heat soak at 1550 deg. It's been said that the surface of the bore has been measured to as high as nearly Rc 60, and that's in a barrel that's around Rc 30! A bullet traveling through a bore that hard will experience MUCH reduced friction over something even in the Rc 30 range. And you've got a bore that will be extremely wear resistant. There are some other minor reasons but I've written enough! ;-)

Пікірлер: 813

@jonathanwilliams4348 5 жыл бұрын

Serbu is a funny guy, a crazy genius, and an all around asset to the Freedom of all US citizens. Try to support this fine American in any way you can!

@unitedwallsystem2941 3 жыл бұрын

I love your videos. I mean no offense, here, you're a smart guy, - you have awesome stage presence, you could be on TV, your personality is awesomely cool humor, and you are very easy to watch & listen to. I love how you comment on the different processes of each step, of what you're doing. You are a blast to watch, & you make me feel in a good mood, thank you. Mike

@markserbu 3 жыл бұрын

Thanks for the kind words!

@lawrencejones5640 3 жыл бұрын

I worked for a while as a blacksmith, I'm one of the few who can appreciate the heat coming out of that kiln. A treasure in winter, a terror in summer.

@JS-xi5nk 2 жыл бұрын

Much agreed!

@josephgilliand4 5 жыл бұрын

"Don't try this at home! Do it at your friend's house"

@user-ej4eq5im4r 3 жыл бұрын

Man says truth...

@HammondArmory 2 жыл бұрын

"I'm going to go get drunk or something" Best way to make a bad day better!

@EdwinSarkissian 5 жыл бұрын

Mark my only question is if that was synthetic oil or was it a blend ?

@markserbu 5 жыл бұрын

It's a special blend called PersiArmeniMex. Kind of like your channel. :-D

@Tunkkis 5 жыл бұрын

In Finland we have a word for extremely troublesome and such things like this, which I personally like very much: "Vittusaatana".

@markserbu 5 жыл бұрын

@@Tunkkis Nice, I like it! Thanks!

@getmeoutofsanfrancisco9917 3 жыл бұрын

"I'm going to get drunk or something, this is just terrible" Mark Serbu's: All Time Best Quotes

@dr.stiffsock3662 4 жыл бұрын

This is the most entertaining channel I've ever came across its full of danger and comedy

@machinemaker2248 3 жыл бұрын

Thank you for including the mistakes and whatnot. Everyone else makes a 30 minute video of the conclusion after days of failure, giving an unrealistic representation and expectation to the viewer.

@westwaylokote13 5 жыл бұрын

Royal nonesuch style haha I love it he’d be proud

@jonlewman8673 3 жыл бұрын

When quenching a barrel I would suggest vertical entry and agitation rather than horizontal. Watch how a knife blade is done. When you submerge horizontal like that and agitate the way you did you cause pockets on the back side of your movement as well as the fluid gassing. This will cause the leading edge to cool faster and can greatly increase the amount of distortion you get from heat treatment. Great Video

@goneballistic 4 жыл бұрын

Thank you for recording these. They have inspired me! to buy like, 10 extra barrels of every caliber I own so I NEVER have to do this myself.Ever.

@scrappydoo7887 3 жыл бұрын

I like the fact that you drop the gems of unrelated information in the video randomly lol

@donbeeastatist1222 3 жыл бұрын

You have a new customer! I LOVE the true American style! It really doesn't have to be fancy or pretty even precise, it just has to work! As a mechanic, the most important tool I have in my box is my air hammer. It's not the proper tool for any job really, but it works for almost every job.

@LongFacedBastard 3 жыл бұрын

A man of culture 1312

@jong2359 5 жыл бұрын

Mark, you are to America what Baguette is to France, Maple syrup to Canada, or Demonetization to KZfaq. Thank you for existing and giving us a glimpse into your daily operations through KZfaq!

@markserbu 5 жыл бұрын

Ha, if only that were true. Seeing stuff like that liberal a-hole going nuts in the vape shop the other day makes me glad I'm as old as I am. I think this country is going the way of the whole world...in a very bad direction.

@jong2359 5 жыл бұрын

@@markserbu Too true, unfortunately. There are too many god damn people in not enough square miles, and society is breaking down.

@mre.w.2850 5 жыл бұрын

@@markserbu agreed it's all going to shit, what juice are you running on the vape ??

@markserbu 5 жыл бұрын

I don't vape...was talking about the video that's all over the internet right now. Google: crazy vape shop employee

@mre.w.2850 5 жыл бұрын

@@markserbu haha yea saw that yesterday "do my bidding" liberals are complete nutjobs

@eugenenault4935 5 жыл бұрын

I had a good laugh watching this video, reminded me of the older Saturday night live days of belly laughter. Loved your video,entertaining as all hell.

@markserbu 5 жыл бұрын

Loved the original SNL...watched it from 1978 until it got shitty. Don't remember what year that was.

@rafaellastracom6411 5 жыл бұрын

Just a thought, if you are going to rifle after heat treatment you may want to consider an intercritical heat treatment, sometimes referred to as an intercritical anneal. It will give way, so to speak, much easier thereby reducing the load on the tool while at the same time eliminating the tempering cycle. You do not end up with 100 percent martensite but that is not always necessary. In any event, happy new year to you and yours.

@markserbu 5 жыл бұрын

Hadn't heard of intercritical heat treatment but I'll look into it, thanks. Happy New Year!

@rafaellastracom6411 5 жыл бұрын

markserbu It has been used for a long time in other fields. For instance, when the gas crisis hit in the 1970's auto manufacturers had to reduce weight and the thick gauge sheet steel used for the body panels was reduced significantly. They needed to maintain strength for energy absorption and first tried fully hardened (martensitic) sheet steel but found that due to the springback/elasticity of the material the bends and corners did not maintain their shape due to the high elasticity of a fully martensitic structure. Basically the shut lines on the panels would rub together as they moved back once out of the dies. They then decided to go to intercritical steels which had the strength required while maintaining their shape perfectly. As the name implies the material is not heated to the full hardening temperature instead are hardened to a temperature just below that. Specifically between Ac1 and Ac3. The end result is that instead of having the entire material hardened (martensitic) you end up with martensitic 'islands' in a sea of softer ferrite. The result of which is a more malleable material as the soft ferrite yields to the harder spots without wanting to springback. Hardening temps would be in the 1,380 to 1,470 (F) for 4140. The nice part is that you end up with hardnesses in the mid 30's without having to temper afterwards as the soft 'ocean' of ferrite arrests crack propogation. Nevertheless you could rifle before hardening with copious amounts of oil and then harden. Try that first as hardening afterwards would have the ID grow by 1 or 2 ten-thousands which is of no consequence. Later.

@SpeedyMercer 5 жыл бұрын

Why not rifle the blank while it is "soft", heat treat it THEN re-rifle it to get the final size?

@samrodian919 5 жыл бұрын

Speedy Mercer did you not see the amount of black scale that was on the barrel blanks when they came out of the oven after hardening? Then it would have been almost as bad again, after the half hour in the oven during tempering. This scale would also form on the bore as well. If you were to rifle the barrel before the harden and tempering process the dimensions of the bore less all that scale and crap would be well oversized.

@SpeedyMercer 5 жыл бұрын

@@samrodian919 that's why I asked, I didn't know.

@user-ej4eq5im4r 3 жыл бұрын

2:37 Ha-ha,I live there! I live in Ukraine and there's workshop close to me that makes barrels and tools to make them You can get rifling button for any caliber for like...400-450 grivnas,its about 15-20 dollars Ed:Im so proud of my country now,its not forgotten at least somewhere ;D ED2: 4:02 By the way,Ukraine didnt want to be part of USSR....And for Russia Ukraine always was more like sourse of food and resources)

@glendunn8881 Жыл бұрын

Can you post some to me. I'll pay you. You can make profit, I can make profit, we both win. 👍✅🇺🇦🇳🇿

@lobsterbark Жыл бұрын

@@glendunn8881 The concept of Ukraine being a country didn't exist before the USSR.

@johna6442 5 жыл бұрын

Mark please show us how to make a rifling button out of a piece of drill rod before the government won't let you do shit. I refer you to HR 7115.Thank you for sharing your knowledge.

@mikebillman8089 3 жыл бұрын

This is one of the greatest most real videos ever.

@cdeichhorn 5 жыл бұрын

Thanks Mark for sharing. I enjoy watching all your videos!

@scottgodwin3288 4 жыл бұрын

Looks like you have very nice shop to work in. That an quality tools makes all the difference in top finished products. Keep the videos coming. Thanks

@billwild7512 5 жыл бұрын

I love your work my friend , had me laughing the whole way thru , all the things you do are the things we all seem to do , so easy to relate , cheers big ears

@milesthom3201 5 жыл бұрын

This was a great video. It was not totally wasted as we all learned from it. Cheers from UK

@steveanderl1144 5 жыл бұрын

Awesome that you take time to make vids like this and others. Thanks Mark

@larrygodbold3017 3 жыл бұрын

I love the way you cobble thing together and make it work, just like the rest of us

@rezaamini4791 Жыл бұрын

Can you make the rifling before the heat treatment?it would be a lot easier i think if it is possible

@3dcreate117 11 ай бұрын

There will be a problem with the quality(translation)

@rezaamini4791 11 ай бұрын

@@3dcreate117 you mean warping?

@notsosilentmajority1 3 жыл бұрын

Great video, really, but I'm no longer motivated to do this, lol. I think I'll just get a few extra barrels and save them for a rainy day. Mark Serbu, you are awesome man. Thanks for being a regular guy and an honest guy that shows us the good and the bad. Hope you got your money back from Slovenia, Germany, Ukraine or wherever it actually came from. Thanks brother. 👍🏼

@foghornleghorn3478 4 жыл бұрын

Love the videos I am a mechanic/ machinist.. for past 26 years build some gun stuff and do alot of machine work for a couple gun Smith's locally .. love the sketch factor you bring to the table keep em coming bud

@DEATH_TO_TYRANTS 5 жыл бұрын

Thanks for another video. I'm very grateful of you taking the time to share with us :)

@realsaddamhussain 4 жыл бұрын

in russian trunk and barrel are the same word

@user-ej4eq5im4r 3 жыл бұрын

Not really...In russian there's a lot of words that look and sound same,but mean different things :D

@TombstoneHeart 4 жыл бұрын

I have to admit that I haven't learned an awful lot about what to do when making rifled bores, but I have, as sure shit, learned what NOT to do! And I reckon one is just as important as the other, so thanks for that, mate. On to part three.....

@nifty1940 4 жыл бұрын

Awww, come on mate, dontcha know he's actually making peashooters.

@spooksvstheworld6731 4 жыл бұрын

Your vids are awesome! Thanks so much. I really enjoy watching them, and lots to learn. 🤘

@shaesdad56 5 жыл бұрын

Mark....LOL Great Video!!! I don't care what anybody else says, you make your videos interesting, informative and most importantly, ENTERTAINING! Thanks buddy, Keep Um Coming! (P.S. The part where you 'Fix' the smoke alarm...Hilarious!!!)

@kriztov265 3 жыл бұрын

Imagine the round getting its arse torn out through that rifling ... instant bird shot from a 9 mm jacketed round. Thanks for the effort to show the pitfalls Mark.

@Karza_357 Жыл бұрын

That rifling button was a mess. Not a good idea to push it trough. But i appreciated that you did it anyway for the video.

@hammerbutton4542 5 жыл бұрын

Good afternoon Mark, tell me you previously made the barrel by this method using the button? If so, what buttons did you use? Your method is certainly good, but for 100 dornings, it is not correct, for forging, yes, it is ideal. Since after quenching the metal loses its plasticity. Many people see your method and repeat it and break half of the buttons, even if they do not break the barrel will not be true. If the working part of the button is 9.05, then inside with the hardened billet, at best, 8.95 is from personal experience and this is already an unfit barrel. Yes, maybe our first buttons didn’t look very good, but it was a working tool, now the equipment is replaced and the buttons look perfect and also work, so it doesn’t mean that they are crap, just a little wrong method. Also in Google there is a lot of information about thick-walled daring, the thicker the walls of the workpiece, the better the result, but obviously the metal should be raw, and after the button should be heat treated. Tomorrow I will send a new button and we look forward to a result that will surprise everyone. thank respectfully

@markserbu 5 жыл бұрын

In my first rifling video I used a button made by Danjon. They've been in business since 1950 and have made rifling buttons for all the major U.S. firearm manufacturers. I'm looking forward to receiving your new button and will give it a fair test!

@kazoolordhd6591 5 жыл бұрын

@@markserbu I honestly wondered why you would harden and heat treat before trying to push another hardened piece of steel through, maybe its the proper way in a factory but with some bent tool with un uniform cuts what were you thinking?

@markserbu 4 жыл бұрын

@customizing guncollector Give me $300.

@beargillium2369 3 жыл бұрын

Thanks Mark Serbu, I work in an auto shop and have to press bushings several times a month on a similar 20 ton press that's probably older than both of us! Fun stuff! Would like to get into gunsmithing myself some day 👍

@AlexanderTzalumen 3 жыл бұрын

The vapor sheathe created is called the Leidenfrost effect. There's a bunch of youtube videos displaying it in water.

@anssi5853 8 ай бұрын

Would it be easier to first rifling, chamber and after that hardening? why you do hardening first?

@moeadi9629 4 жыл бұрын

Despite all the bad comments below, I believe the right way of learning is thru the failed experiments, thanks for sharing this with us...

@rfailing1 5 жыл бұрын

Great way to fix a smoke detector....good video.....looking forward to part 3.

@cornkobmansanto17 3 жыл бұрын

You're my new favorite. Hands down. I would so love to build firearms!!!

@galtutankamon 5 жыл бұрын

Cheap rifling buttons from ebay or aliexpress that are made from solid carbide with TiN are well made and much cheaper.

@stonequarry6977 3 жыл бұрын

I always chuckle when I hear a hydraulic press release 😂 "Weeeeeeeeeeeeeeee!"

@krtichacek 5 жыл бұрын

LOVE IT!!! This Old Tony has a brother!

@darrellbaxley9315 5 жыл бұрын

Lost in translation! Trunks = barrels 6 fields = 6 lands 6 rifling = 6 grooves

@myrarothero3738 5 жыл бұрын

Quench vertically not horizontal to minimise distortion.

@echobravo5488 5 ай бұрын

“You’re not going to beat me”…. That’s my life motto!!!

@MoreAmerican 5 жыл бұрын

0:55 The super low shipping rates are due to US subsidies (USPS) and in a roundabout way the American tax payer. In 2011, the U.S. Postal Service made special agreements with the national postal carriers of China and Hong Kong (and subsequently South Korea and Singapore) to allow tracking-enabled packages not exceeding 36” or weighing over 4.4 pounds to be sent to the U.S. for extremely low rates. They called this shipping option the ePacket, and the rates are so low that it’s cheaper to ship small parcels from China to an American city than it is to send that same parcel domestically.

@echobravo5488 5 ай бұрын

“It’s almost like they manipulate their currency… I don’t know”😂😂😂 I love you Mark!🤣🤣🤣

@gorp27 5 жыл бұрын

I bought one of the Chinese buttons from Ebay to build Professor Parabellum's sheet metal derringer model 3 and it worked smooth as a baby's bottom. I'm not done with the build yet because I'm waiting on music wire for the main spring, but when I complete it I'll post a video.

@markserbu 5 жыл бұрын

I just got in several of those...can't wait to use them! Seem to be very nice quality and the price is absurdly low. What steel did you use for your barrel?

@gorp27 5 жыл бұрын

@@markserbu According to the plans it says use 12 mm mild steel bar, so I stopped at a tractor supply and picked up what I thought was a grade 5 bolt with a 1/2 inch diameter, now that I looked the only markings on the head is H E R and I can't find any info on its tensile strength, so I may scrap it and start over.

@hammerbutton4542 5 жыл бұрын

Good day, what is the working diameter of your Chinese button?

@kazoolordhd6591 5 жыл бұрын

I have made .22 barrels out of mild steel with no more than 3mm chamber wall thickness, a 12mm round stock bar will be fine

@gorp27 5 жыл бұрын

@@hammerbutton4542 5.6 mm is what I used. www.ebay.com/itm/5-5-11-43mm-Rifling-Button-6-Grooves-Tungsten-Steel-Chamber-Helical-Reamer-Tool/312142699625?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

@notwocdivad 6 ай бұрын

Not being a Gunsmith I don't know but why don't you cut the rifling BEFORE Hardening and Tempering the barrel so you are cutting while the metal is comparatively soft??

@markserbu 6 ай бұрын

@notwocdivad I actually answer this question many times in the comments. Also note that button rifling is NOT cutting...

@hitmax087 6 ай бұрын

@@markserbuanswer once again please, can’t find your responses

@manixriostv7398 4 ай бұрын

Good day sir. We're waiting fot you answer. God bless😊

@davidbean5807 5 жыл бұрын

They make a copper gauze that you can get to wrap around your flex hone tip, we used it when honing injection barrels for plastic. Our polishing rods were a little different than the one you are using though,ours were nine to ten feet long and the bore on our barrels were two and a half to three inch, but basically the same process.

@notthistimenet Жыл бұрын

The oil says what? Ha. Thanks Mark for another great vid.

@asas-mb4wj 3 жыл бұрын

What kind of reamer are you using before the rifling? I see many different kinds when i look them up. are they bore specific or caliber specific?

@DEATH_TO_TYRANTS 5 жыл бұрын

Happy New year!

@briankerr4512 5 жыл бұрын

A question … why can't the rifling be done before the steal is hardened then heat treat the barrel after ?

@harbingerofwarx995 5 жыл бұрын

Heat treating changes the diameter. That's why the reaming was done after heat treating; to get it to final inner diameter.

@briankerr4512 5 жыл бұрын

ok, Thanks

@markserbu 5 жыл бұрын

It can, but 4140 at Rc28-30 is actually more conducive to being button rifled than annealed 4140 is. In the annealed state it tends to tear. And yes, the dimensions do change a bit with heat treatment. That being said, I intend to do some experimenting in the next video with heat treating AFTER rifling.

@mikeblair2594 Жыл бұрын

As a blacksmith I use leftover restaurant grease instead of motor oil or quenching oil. There's a bit of smoke, but it smells like french fries. You can also get a slightly harder quench because it's thinner, not much harder, but a bit. I use this on blades, the hardened parts for a flintlock or percussion lock ( I'm a gun builder/gun nut too). I make all kinds of tools, from my own rasps and files to my own cutters and reamers for a hand forged wrought iron barrel. I'm not on KZfaq, but if you want to see a good representation of what I do, watch "the gunsmith of Williamsburg" that will show ya how we used to do it.

@kenhawkins8884 4 жыл бұрын

LOVE YOUR VIDEOS---THANKS YOU HAVE SAVED ME ALOT OF MONEY

@ajkurp5919 5 жыл бұрын

Mark, you're inspiring!

@Novoa85 4 жыл бұрын

Best part , shooting the fire alarm. I’ve felt like doing that so many times

@kevinroberson1985 8 ай бұрын

And I always aneal metal and shape it before tempering makes it lots easier

@bogeydope3022 14 күн бұрын

Mark! You NEED to have either the button or the barrel be able to turn freely! Make a barrel rest with a ball bearing. Without this, the button cannot follow it's twist rate! And yes, those HSS buttons are crap, use carbide ones, sometimes you even find chinese 9x19 ones that have the right specs(8,82mm od), most times they send you a 9x18 makarov one labeled as 9mm. Beside that, You gotta play with the ID of the barrel, every material and button has it's sweetspot. It all depends on the twist rate, groove count and the detailed geometry of the button. I used to start rifling with a wider Barrel blank and see how it goes, this way you can touch your way forward to the right specs without destroying the button. However, most important is that the setup can rotate freely while pressing. One more thing is, a press that supports "hammering" in small steps is better than a continous pressing motion. I've made numerous barrels with button rifling, and it's a pretty hard thing to do exactly right, especially because there is so little info on all the details. I use 40Crmo for the blanks, unhardened and found it to be the best for short barrels in pistol calibres.

@Pef273 3 жыл бұрын

Awesome how real you are about it. Guessing the original flame up was from gas that slipped past the rings

@ngm3673 4 жыл бұрын

Think its really funny reading comments with a bunch of ppl chritisizing how hes doing things when he clearly states why hes doing it that way and on top of it has a thorough description lol people these days, but all in all great video keep it up.

@CCW1911 5 жыл бұрын

Interesting video, I wonder if there is enough torsional load on the button, especially a longer one, to cause the break? I would guess as the button moves forward it kind off relieves some of that but is it enough? I'm imagining some kind of sleeve the barrel rides in that is supported by bearings allowing it to turn if this is a concern and possibly pushing the barrel into the button as a solution.

@BestFleetAdmiral 5 жыл бұрын

Can’t wait for the next video! I just machined my own button a few days ago but haven’t gotten the chance to test it out yet. If those Chinese ones work then I’ll be glad I don’t have to make any more of those buttons

@markserbu 5 жыл бұрын

I machined my first button before I'd ever seen a button and I got pretty close. It worked but wasn't great. Even if I were to make one with all that I know now it still wouldn't be worth it of those Chinese buttons are decent at all. So I'm with you for sure.

@ianlevine273 5 жыл бұрын

Thanks for another fun video. My guess is based on how far out of round it was when you spun it at the beginning is that jump between the pilot and the button made it bind and barrel forcing in to straight is what broke it. Also, a dumb question, but would it be easier and could you get acceptable results putting in the rifling before you harden it?

@growleym504 7 ай бұрын

No way in hell I would have used that Ukrainian button after seeing it. I would take my chances making one on the mill. Or a set of progressively deeper cutting buttons to be used in series. Thanks for taking one for the team. I will confess that I had a mini anxiety attack watching you quench in a plastic bucket. There are metal ones. Yeah they got them. An old steel cooking pot from the goodwill works fine, and if you are really slick and a fast talker, you can walk out with a perfectly matched lid, as well. Used motor oil isn't THAT bad for quenching. You aren't making a $2k custom straight razor. I would filter it and heat it, though. Says the guy with a unopened 5 gallon pail of Park 50 LOL. But I do hope that some day soon you upgrade your quenchant container. And get a new smoke alarm. And quench outdoors. I have never made a barrel from scratch, but I had always assumed that for a pistol barrel, one would first bore and ream and rifle, and then harden and temper, with a final polish in the bore. But I am more used to working with harder stuff and 30RC is maybe not so hard to work with. So thanks for showing me that you can actually heat treat before rifling. You really need a jig of some sort for your press, even just a block of steel drilled for the barrel.

@Johnny-jr2lq 5 жыл бұрын

Well I did get a notification for this video so that’s good. Can’t wait for the next video. And Happy new year Mark I Hope 🤞 it’s a great year for ya

@markserbu 5 жыл бұрын

Happy New Year, same to you!

@seanjarnigan8978 3 жыл бұрын

Watching part one made me think. Could you use high pressure grease behind the button to push it through?

@gtfkt 5 жыл бұрын

You gotta put some molybdenum paste on the button otherwise it will gall and friction weld itself to the barrel blank pretty much instantly.

@markserbu 5 жыл бұрын

I did that...moly grease.

@freedumbsquirts4809 5 жыл бұрын

More bushing for the pushing.

@Johnny-jr2lq 5 жыл бұрын

Also I liked your statement about sending a T-shirt to Detroit just thought I would add Detroit native checking in

@jeffjefferson2676 5 жыл бұрын

Well looking forward for part 3! Those rifling buttons from china do look good. I would like to know if they are any good. Some confusion about their true caliber. The 9 mm looks to be 9 mm makarov, and the 7.62 is that .310 or .308? Is there a 9 mm parabellum button from china? Greetings!

@eribertoacedo9505 4 жыл бұрын

Hello what you can do as far as heat treating, I worked in a shipyard for over six years we tempered our tools with fish oil works great.🕶

@realbudgiesmugglertwohatsb2611 4 жыл бұрын

Im not into guns but that was a really really really good demonstration of tenacity and skill nice work Dude

@mre.w.2850 5 жыл бұрын

Good flame in oil is a damn decent heat treat is the sign of a nice hardened steel, alot of the old black smiths over here use only old engine oil,

@CVBigTex 4 жыл бұрын

I liked this video for one reason, I laughed my ass off ! 😂

@kazoolordhd6591 5 жыл бұрын

a trunk is a bad trasnlation of barrel, and in portugese it translates to camera if youre curious

@war_moose5814 4 жыл бұрын

Mark you scare me but this is awesome!!!!!!!

@ThomasHA1982 3 жыл бұрын

love your videos! Keep up the good work , even though it is frustrating :-D

@max-weber 5 жыл бұрын

Don't feel bad, I bought the same button a while back and got the same results. I even tried blending a "proprietary" lube and pushing the button through a larger-than-saami spec bore! I have had success with cut rifling. I rigged up a "home depot" rifling system that uses a mandrel (aluminum dowel) embedded with a carbide tipped sawzall blade (I used a dremel to cut 3 teeth out of the blade and I also cut a slot into the mandrel to hold the cutter, which can be shimmed to adjust cutting depth). The mandrel is embedded into a larger wooden dowel that fits perfectly inside the I.D. of a PVC pipe. On the PVC pipe I "programmed" a 1 in 10 twist by using a dremel to cut the helix pattern. After installing the wooden dowel in the PVC pipe, I partially sink a screw into it, which guides the mandrel along the programmed path. As long as you aren't taking too deep of a cut, you can manually cut the rifling by hand. You can index the barrel to add as many lands/grooves as you prefer. The rifling will be pretty shallow and won't hold up over time, but it definitely works when I range-tested it (even with just a single groove cut). I still wish these buttons worked better though. I know TheIdahoanShow has successfully button rifled and built a nifty hydraulic press: kzfaq.info/get/bejne/pNdidcZjvKrXfHU.html

@hammerbutton4542 5 жыл бұрын

Dear friend do not be fooled, Mark used not quite the right methods, and the new video will prove that our buttons are the best, give a photo of the broken button that you broke? I'll send you a new one if it's our fault. I will give above a photo of our button work which was done a week ago. this is the video you put in there.

@hammerbutton4542 5 жыл бұрын

ibb.co/w02s8C2

@hammerbutton4542 5 жыл бұрын

ibb.co/5847FwF

@hammerbutton4542 5 жыл бұрын

photos in the links is the work of our button a week ago, subject to all recommendations☺This is incomparable to the result of your video！

@eltenda 5 жыл бұрын

Great video! Happy New year ,see ya at shot

@Allinoffroad 5 жыл бұрын

Love these vids,why dont you do this before hardening it?

@markserbu 5 жыл бұрын

Please see my reply below...

@garydelnevo6000 Жыл бұрын

Entertaining and informative video. Mark, would you mind telling me about your background?

@markserbu Жыл бұрын

Thanks. Background? That would take a while! Do you mean just my shop background?

@davidbean5807 5 жыл бұрын

One more helpful hint is get a air jack to put on your press. Makes the job so much easier.

@WhovianGrandpa 4 жыл бұрын

A "Trunk" is the shaft that you build into a barrel. It is a thick, cylindrical item similar to the trunk of a tree. Thus calling it a "Trunk"

@tylerroyston1251 4 жыл бұрын

"this wins biggest POS award I think I'm gonna go get drunk or something" hahaha I love this

@no.step.on.snek.2423 3 жыл бұрын

" used an old mechanics trick to get that outta there... I beat the shit out of it with a hammer and a screwdriver" - mark serbu-

@jimseefeldt2993 3 жыл бұрын

This guy is awesome

@DonMeaker 3 жыл бұрын

In Soviet Ukraine, button rifles you...

@MrSpeedysChannel 5 жыл бұрын

I need a drink after watching that and waiting for it to snap and fly lol

@johnconant1716 4 жыл бұрын

If you haven't gotten your quench oil yet use canola and preheat it before you quench. Works great for knives.

@billy19461 2 жыл бұрын

You know good and well we have to try it.

@johnwp111 5 жыл бұрын

Don't think that you should have hardened the barrel before using the rifling button.

@badgoy8439 5 жыл бұрын

im sure there's a reason for hardening first- maybe warping issues or something

@TheAngler2210 5 жыл бұрын

he "hardened" it to 30hrc, which is not really hard at all. But still necessary for gun barrels. "hardening" after rifling guarantees that your bore diameter and your land diameter will change size.

@hightechredneck3362 Жыл бұрын

A trunk is a container for shipping, as in the old term "Steamer trunk." So are barrels. I wonder if their dictionary/thesaurus treated them as synonyms.