Rosco Manufacturing - 26,750 Rounds of Full Auto - Barrel Autopsy

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  • Опубликовано: 29 сен 2024

Комментарии • 391

  • @jasonrajabi1191
    @jasonrajabi1191 4 года назад +226

    Chad, with someone of your knowledge, I think it would be great to see an in-depth AR style rifle cleaning video- if you ever find the time. Awesome stuff.

    • @SchooloftheAmericanRifle
      @SchooloftheAmericanRifle  4 года назад +109

      Certainly

    • @theduck17
      @theduck17 4 года назад +4

      A live Q&A would be incredible.

    • @Deathbomb9
      @Deathbomb9 4 года назад +12

      Drop the fieldstripped rifle in a tub of CLP, let stand for 72hrs, remove, scrub parts with nylon brush, run through parts cleaner with very mild solvent/degreaser(simple green), rinse with water, dry thoroughly with pressurized air, lube all parts and lightly coat all steel parts with CLP. We used to do that while on post deployment leave, everything but the optics, and lowers went into the bins, and when we got back you could see carbon settled on the bottom, and it was way more than you thought your rifle had. I currently have an Anderson RF-85 upper. They claim you don't need lubrication, and warn against using lubricant. I run my upper wet, and I keep it wet when at the range and at home I keep a light coat of oil. If I need more than a mag for self defense then I'm not doing it right, or it's the cops at my door, which is a slim to none chance for me. And in reality, you don't need to get every last bit of carbon, and honestly you shouldn't remove it all. It's not worth the time and effort taken to achieve, and in my opinion, it's not healthy for the firearm. Carbon isn't the enemy, your bore, chamber, barrel extension, bolt face, bearing surfaces, and BCG should be clean of build up and excessive carbon. But the first three should be the main focus for being the cleanest and the rest you can get the majority and not have any operational or excess wear issues. The biggest place I see people missing is in the FCG and buffer assembly and tube, as well as their gas tube and gas key. If you have coatings that will withstand it, break/parts cleaner works magic on carbon. I might get chastised for saying that, but I used more of that stuff in the military than I ever did as a mechanic.

    • @hellcatdave1
      @hellcatdave1 4 года назад +4

      @@Deathbomb9 CLP isn't the best lube. It kind of fights itself.

    • @Deathbomb9
      @Deathbomb9 4 года назад +8

      @@hellcatdave1 never said it was. It's what we could use in the military and I have used gallons of the stuff. It comes down to preference and how many different products you want to use and have on hand. For most people, they want a few. I have lost count of the number of products I have or have used. For the purposes of cleaning after the range, CLP is great. You can wet the firearm, put it in the case and head home. After a couple hours it has worked it's way in to breakdown most the carbon build up, or if you kept applying it at the range and started with a well lubricated firearm you can likely wipe most the carbon off and have minimal time scraping and all that. For a deep professional cleaning I use several products and in different stages. I've never had an issue with CLP besides its heat resistance and the fact that you have to apply it more often than most oils. But in the military that was t really an issue as we had gallons of the stuff at any point in time and usually did some training with our rifles at least once a month. I've had CLP restore function to an M9 that spent 2 weeks in a humid and damp Texas summer where it was starting to rust and was inoperable. After cleaning and a little scrubbing to clear up the rust it was as good as before. I won't say new because it wasn't, but it was partly due to the basic issue cloth holster that it was stored in.

  • @icelandviking1961
    @icelandviking1961 4 года назад +377

    Learned more about barrels in 17 minutes than 40 some odd years of shooting AR’s. Thank you Subscribed

    • @donniegombel
      @donniegombel Год назад +3

      Shout out to Rosco's for letting you use their barrel. I will be buying their products from now on. It would have been sweet had they sent you a new barrel with it for comparison. Maybe next time.

    • @alanmeyers3957
      @alanmeyers3957 4 месяца назад

      Did you really? What did you learn, exactly?

  • @maddmaxx9819
    @maddmaxx9819 3 года назад +4

    I'm feeling REALLY good now about my Rosco barrel that I just bought !

  • @bozobuckets785
    @bozobuckets785 4 года назад +23

    NITRIDE is damn impressive!

  • @18echo
    @18echo 2 года назад +1

    Rosco barrels are the new supplier for the colt new / latest Cr prefix assembly lineup 💪🏼💪🏼💪🏼 milspec/ civilian proof . My 6933 commando , 6920 and my full size 20 in. Rifles all have rosco stamped / proof barrels and they all print 1.5 moa or better at 100 yards depending on ammo quality and weather .

  • @jgt07
    @jgt07 11 месяцев назад +1

    Was on the fence about buying a Rosco for my next build. I am no longer on the fence.

  • @tonydeaton1967
    @tonydeaton1967 Год назад +1

    Amazing what these little rifles will take when they're set up properly with good quality components. We several older Colt SP-1's that are used as ranch rifles, all with pretty heavy use and high round counts. They just seem to keep going and going.

  • @ObservingLibertarian
    @ObservingLibertarian 4 года назад +7

    I can't say for certain because I've never tested the phenomena in controlled conditions but I think the accuracy issue is caused by a quasi internal version of a damaged crown. We see accuracy issues with a damaged crown because the propellant gasses are imparting an interrupted spin and or flight pattern after the bullet has left the lands. When you combine 1) the muzzle end erosion - which may mean that through part of the barrel the bullet is not being influenced, or not influenced greatly enough, by the lands: with 2) the troth cut just forward of the gas port - that irregular flow of propellant gases imparting force on the bullet may be interrupting the spin and flight path of the bullet in the same way that a damaged crown would.
    .
    It's an oddity that we would see the same phenomena occur internally like this: or at least it's an oddity with *newer* guns. This is not horribly uncommon to see in *surplus* guns in which both ware has reduced the internal diameter of the lands and erosion has left pock marks or holes which create very similar conditions. It's not something you'd ever worry about on ARs because rarely do you see AR barrels which have been worn away to an extent that lands are far away enough from the round that an internal irregular gouge like the gas port erosion would be able to greatly influence the round.

    • @yolo-qr2fq
      @yolo-qr2fq 4 года назад +2

      That's why long barrels are awesome. If you do happen to shoot it out cut it and start again.

  • @exnjcop56
    @exnjcop56 3 года назад +1

    Between this guy and Johnny Glocks, I’am a YT taught Armorer !!!!!

  • @sdguy123
    @sdguy123 4 года назад +3

    Rosco apparently makes damn fine barrels!

  • @brudamiranda3314
    @brudamiranda3314 2 года назад

    Great video ! I'm loving the your channel

  • @MannyScoot
    @MannyScoot 3 года назад +1

    I love my 7.5" Rosco 7.62x39 barrel ..... Mine has around 14,000 rounds through it .....

  • @cun1983
    @cun1983 4 года назад +3

    Just stumpled upon your channel, and I like it.
    I have one humble request: Please explain what the tools do, and why that means the measurement you just took is a good/bad indicator.
    I'm not a gunsmith, and I have no idea why "gizmo X doesn't fit perfectly to hole Y at angle Z" is a bad thing.

    • @jacksonthompson7099
      @jacksonthompson7099 4 года назад +2

      Basically all his tools are gauges which is created off of SAAMI specs. SAAMI was created for consistency in manufacturing of firearms and ammunition for a specific caliber. If out of spec ammo or guns are made then guns will start going boom in your hands which was one particular problem with the M1903 springfield rifle (real world example) as for the muzzle erosion gauge that just tells you how worn the muzzle and rifling are because a gun will not shoot good at all if the bullet does not have a tight fit at the muzzle which will cause "key holing" and you won't hit the broad side of a barn. Google can also be of great help with answering ya questions.
      I have personnel experience with head space gauges cause i have two lee Enfield rifle that have issues. One rifle has a headspace that is to tight so i will have to change out the bolt head and the other rifle was on the verge of having headcase separations (cracked case heads on my brass) and was also leaking gas from the chamber, the field gauge got eaten so i had to buy a new bolt body for that rifle and the cracking case heads and gas leaking from the chamber was solved.

  • @matrixmalachi2646
    @matrixmalachi2646 2 года назад

    Good to know my rosco barrels are going to be good for a long time to come.

  • @mrwendell6151
    @mrwendell6151 3 года назад +2

    This guy at the guy range said he changes his barrels every 3,000 rounds and after 3k every barrel is junk. Lol

  • @Camelfacekamala
    @Camelfacekamala 4 года назад +1

    Did Rosco’s mention if they were firing the barrel suppressed?

  • @rsimpson9596
    @rsimpson9596 4 года назад +1

    In 82 I shot an m16 full auto, 360 rounds as fast as I could. The barrel was screaming hot. I always wondered what that did to the barrel.

  • @dstan9615able
    @dstan9615able 3 года назад +1

    Very much appreciate you sharing comprehensive expertise. Just have one question, why the reluctance in using bronze bore brushes? Thank you

    • @jeffreysidden1832
      @jeffreysidden1832 2 года назад

      Chad has said that if you are cleaning a barrel using bronze brushes it can leave a trace of copper, that would then appear as the barrel still being dirty.
      When I was still in the service, if I used a bronze brush it was with CLP dripped on it and then left to sit to give the CLP 'time' to work before pulling dry patches through.

  • @erikvaldur3334
    @erikvaldur3334 3 года назад +1

    After watching you clean off the loctite from the threads I would love to know if you recommend loctite or not. I saw Brunnels do a video where they pretty much stated not at all. Others have stated in certain spots, etc...
    I just found your channel, subbed instantly. After only a few videos I have a great deal of respect for you and your knowledge.
    Also, do you work on arms for the general public?
    Thanx for the fantastic learn.

    • @ryanpeck3377
      @ryanpeck3377 3 года назад +1

      Industry standard is Rockset is used on muzzle devices that are not pinned and welded and will (or might) have a suppressor mounted to it.... if its not going to be pinned or have a suppressor then a crush washer is generally used.... rockset is going to hold the flash hider/compensator on even under heat and recoil, that is important with a suppressor as if the muzzle dvce comes loose will firing it can cause the bullet to hit it causing damage or catastrophic failure. Rockset will also allow the muzzle device to be removed in the future if the User wishes to change it out
      A crush washer could fail with the added weight/stress of a suppressor on it.
      (13.7” -14.5” barrels will normally have a muzzle device pinned and welded on so it cant be removed and that legally makes the barrel over 16” so it is not considered a Short barrel rifle requiring a tax stamp...or pistol requiring a brace instead of a stock....if the barrel is over 16” or under 13.7” then there is no need to legally pin and weld)

  • @matthewreeves714
    @matthewreeves714 2 года назад

    I bought one of these barrels and had reliability issues right off the bat and trying to reach someone for some input. Lol. Undergassed, 4-430 ejection, failure to pick up a round occasionally, and failure to lock the bolt back, and noticed the barrel lugs were damaged after all this so I dont know of it came that way or not, I never checked because I never assumed it would, but my bcg doesnt show any damage and it seems to index fine and not want to hit the sides of the lugs, I've checked it.

  • @blackngoldfan2004
    @blackngoldfan2004 2 года назад

    Alligator cracking... what is that, thermal fatigue?

  • @aftermath2333
    @aftermath2333 5 месяцев назад

    Is this bloodline or purebred?

  • @Frank-pv1hp
    @Frank-pv1hp 4 года назад +2

    How come the gas port erosion starts from muzzle end? I would have thought that since the gas hits the gas port from the breech end first, that would be where the erosion occurred.

    • @skyviewaerialphotography6372
      @skyviewaerialphotography6372 4 года назад +4

      Because the projectile is creating a seal in the barrel while traveling through it. The most amount of pressure and debris from powder burn is directly behind the bullet tail, and escapes through the port immediately after the tail passes that port.

    • @danielburdette249
      @danielburdette249 4 года назад +1

      Just imagine you were shooting a sandblaster down the barrel in the same direction of bullet travel

  • @gavindooly2375
    @gavindooly2375 9 месяцев назад

    So basically what we're seeing is a rifle barrel that can last 26,000 rounds as a good duty or service grade barrel should all while not being cleaned and being fired on full-auto which arguably increases the rate of erosion? Good God. If they actually cleaned and maintained this thing instead of subjecting it to the worst case scenario possible I imagine this thing could last for at least twice as long.

  • @samuelthecalled6899
    @samuelthecalled6899 2 года назад

    So would this be a quality statement to all rossco barrels? Or does being a 10.5" have anything to do with the quality at 26k rounds?

  • @DAP_86
    @DAP_86 2 года назад

    Have anyone experience with colt socom 14.5 Heavy barrel?

  • @michaelkaiser1864
    @michaelkaiser1864 3 года назад

    WHERE DO YOU GET THE PUMP JAR???

  • @youwish7323
    @youwish7323 3 года назад

    I am in just astonishment how many people do not clean there weapons.

  • @mphRagnarok
    @mphRagnarok 2 года назад

    It's strange how you're stressing over and over you're preserving the sanctity of this junked AR barrel that they obviously are gonna toss and replace. I mean new an AR barrel isn't even expensive

  • @november750william8
    @november750william8 4 года назад

    Have you ever inspected a barrel with a higher round count than this one ?

  • @TheActionBastard
    @TheActionBastard 2 года назад

    >25,000 rounds in auto is a good lifetime for a barrel. As a casual user I would never, ever kill one of those barrels. Ever. Even as a heavy user I'd consider replacing my barrel every $15,000 in ammo to be acceptable. That's... a lot of boolits.

  • @boosted95
    @boosted95 3 года назад +205

    Damn at todays ammo price that barrel shot about $18,500 through it.

    • @user-su4zt7dx7b
      @user-su4zt7dx7b 3 года назад +18

      That’s absolutely insane

    • @nebick27
      @nebick27 Год назад +9

      Update: at today's prices its closer to $25,000 of ammo

    • @yeshua1176
      @yeshua1176 Год назад +4

      Actually it's only about 12k worth of ammo and has been for well over a year

    • @billstevens5277
      @billstevens5277 Год назад +3

      Ya, they got their money's worth out of it. I wouldn't be surprised if Rosco asks to use this video in their advertising.

    • @alanmeyers3957
      @alanmeyers3957 4 месяца назад

      @@billstevens5277why? It’s a worn out barrel, what does this prove to you? Olympic arms barrels would go 50,000 +

  • @realisrealite5554
    @realisrealite5554 4 года назад +158

    I've got a new respect for Rosco barrels.

  • @jonguy8496
    @jonguy8496 4 года назад +174

    I love watching this guys videos but he makes me want to spend a small fortune buying the stuff he has.

    • @JohnSoh
      @JohnSoh 4 года назад +26

      A tour of the shop or video about all his equipment and what they do would be fantastic

    • @SchooloftheAmericanRifle
      @SchooloftheAmericanRifle  4 года назад +80

      I'll do that.

    • @davidmckenzie4604
      @davidmckenzie4604 4 года назад +3

      Same here!

    • @madeintexas1213
      @madeintexas1213 4 года назад +4

      @@SchooloftheAmericanRifle hell yeah

    • @Randy_84
      @Randy_84 4 года назад +4

      Seriously.. all those wonderful toys

  • @gousmc1983
    @gousmc1983 4 года назад +52

    Since I found a local barrel manufacturer I've used Rosco barrels. Also props to them to send off a barrel to a RUclips gunsmith to critique and show their stuff.... Regardless of outcome.

  • @tazerface8659
    @tazerface8659 4 года назад +34

    Nitride is no joke. I've drilled multiple gas blocks for taper pins and my drill press zips right through phosphated gas blocks. With a nitride gas block, I was amazed and perturbed by how hard I had to lean on it before the bit stopped chattering.

  • @raydon14ify
    @raydon14ify 4 года назад +48

    I wonder what erosion on LMT’s 45 degree gas ports look like

    • @jonathonschram3429
      @jonathonschram3429 4 года назад +8

      I have been wondering this as well. Some of the claims seem pretty dubious...but I want to see a report from a 3rd party.

    • @theduck17
      @theduck17 4 года назад +10

      @@jonathonschram3429 Stole this from the AK subreddit because I don't think I can say it any better, but I researched this on AKs and found this to be very informative:
      "Everything pre-AK-74 used a 45o gas block and gas port. Early AK-74s also used a 45o gas block and port until they realized it was causing bullet shearing. The AK-74 switched to using a 90o gas port and gas block because of this. Everything afterward did, too, simply because it was easier to only have to drill one kind of hole and make one kind of gas block for everything.
      The gas port angle is what is important. Romania used 45o gas blocks on their AK-74s, but did not experience bullet shear due to the fact the gas port itself in the barrel was drilled at a 90o angle.
      Basically, it doesn't matter."
      Also, I believe a 45 degree gas port will lead to quicker gas port erosion...look at how the gas port eroded on this 90 degree gas port...now take that and start with a 45 degree gas block, it's just gonna accelerate the erosion.

  • @andrewtucker7990
    @andrewtucker7990 4 года назад +114

    So basically, there's no way your average shooter would ever need to replace one of these barrels.

    • @HickLif3
      @HickLif3 4 года назад +15

      Depends on what they consider accuracy issues, there is a place in las vegas that doesn't swap the barrels until they notice tumbling at 15-20 yards with full auto mag dumps. if you are hunting you would probably swap it a lot sooner

    • @muffemod
      @muffemod 4 года назад +19

      26,000 rounds that's like 26 range visits for me.

    • @hellcatdave1
      @hellcatdave1 4 года назад +6

      @@muffemod You shoot roughly 780 rounds each range visit?

    • @Grant881000
      @Grant881000 4 года назад +29

      @@muffemod where are you finding ammo to shoot 1000 rounds per outing

    • @Kilo__Bravo
      @Kilo__Bravo 4 года назад +5

      muffemod I know right.....

  • @Randy_84
    @Randy_84 4 года назад +36

    They should pay you for this... Because of your review, I'm looking at buying their product.

    • @thomasrussell2789
      @thomasrussell2789 4 года назад +8

      This video will probably sell a lot of barrels for them

    • @SchooloftheAmericanRifle
      @SchooloftheAmericanRifle  4 года назад +51

      I wouldn't take the money because it would mean I can be accused of bias.

    • @alligatormonday6365
      @alligatormonday6365 4 года назад +4

      @@SchooloftheAmericanRifle we need more folks like you, man.

    • @bjornegan6421
      @bjornegan6421 3 года назад

      why do you think they sent him the barrel...

  • @twistinprops604
    @twistinprops604 4 года назад +23

    Thank you for posting this. It gives me great confidence and reassurance my rosco 13.7 was a good choice.

  • @christophersine84
    @christophersine84 Год назад +11

    Considering how relatively inexpensive Rosco's barrels are, this is very impressive

  • @grantpickens2704
    @grantpickens2704 3 года назад +12

    Thank you rossco for the opportunity to see this

  • @user-td1zo3tv9p
    @user-td1zo3tv9p 3 года назад +13

    And THIS, Boys and Girls, is why I run Rosco barrels on ALL of my new AR platform builds.
    Good on ya, Rosco!
    Customer for life here.
    Thanks for the video and proof that I have made good choices in my barrel selections.

  • @whiskeyactual.
    @whiskeyactual. 4 года назад +25

    This Garand Thumb's barrel? j/k

  • @chaoticcaninejb
    @chaoticcaninejb 4 года назад +44

    The number one place to get true data and learn right here!

    • @marcgonzalez9547
      @marcgonzalez9547 4 года назад +1

      I know right & thanks to kotaboy bcg video i ran into chad as i hear people call him he definately earn$ hi$ money talk about a WEALTH of Knowledge plus the Honesty

  • @OrignalRecipe92
    @OrignalRecipe92 2 года назад +9

    In short, once your gas port erosion begins to vent excessively and creates a tapered valley in the barrel, it's only a matter of time until the muzzle tolerance begins to open up significantly. Awesome video and thanks for taking the time to share your findings wit us. You've got my subscription.

  • @supremenanner524
    @supremenanner524 Год назад +8

    Built a handful of my own ARs over the years, learned more from this guy in the past week of watching the videos than I have from any one Ive talked with. From cleaning rifles and reading barrels. Blows my mind how technical this can really get, but its made where anyone can pickup the knowledge. Great work

  • @jonathonschram3429
    @jonathonschram3429 4 года назад +12

    Man...my 10.3 ballistic advantage "hansen" barrel was torched at 5,500! Of course, 90% of those were fairly hot Hornady 75bthps behind RL15 or Varget. I wonder how many more rounds it would have survived with an equivalent load of cooler burning ball powder? All academic at this point...ultimately barrels are dirt cheap compared to component prices or -god forbid- factory ammo.
    Good work on the autopsy! Subbed.

  • @gregkeen4907
    @gregkeen4907 2 года назад +3

    My bet it that whatever muzzle device that was used was over torque. This is a very common problem. 25 ft/lbs is too much torque. Yet this seems to be the generally accepted consensus. According to Joe Carlos, a precision AR gunsmith, 8 ft/lbs is the most you should ever use on any muzzle device. He's done more testing on these kind of things than anyone else I've heard of. He also suggests using Loctite or Rocksett to keep your device from coming loose. He found in testing that the standard 25 ft/lb. figure constricts the barrel leading to this exact inaccuracy condition. Just my two cents.

  • @jakedomshoots
    @jakedomshoots 4 года назад +39

    Need more content Chad these videos are gold. Got a radian and bcm bcg if u need to make videos about em

    • @Peaktac
      @Peaktac 4 года назад +2

      Send them in for sure

    • @hodlwise2470
      @hodlwise2470 3 года назад

      @@Peaktac how do you go about doing that? There's literally no contact information on the website and he disallows messages on Instagram...

  • @mtnbound2764
    @mtnbound2764 Год назад +5

    as an avid ar enthusiast, this channel is a gold mine of information! thank you so much for sharing your knowledge.. now if i even had 10% of the gauges you do!

  • @uralbob1
    @uralbob1 4 года назад +9

    The gas port erosion is super interesting. It almost mimics running water erosion/undermining in soil.

    • @seanoneil277
      @seanoneil277 3 года назад +1

      Yep, that trench looks like a water erosion path for sure. Good analogy.

  • @mach9383
    @mach9383 4 года назад +8

    That’s a dam good testament of Roscommon barrels! Ordered a 12.5 for my next build.

  • @HB-kp6rl
    @HB-kp6rl 4 года назад +6

    Anyone else smell the acetone when he used it or is it just me.

  • @lentinikhalsa1
    @lentinikhalsa1 4 года назад +11

    Love that you made this video. I just bought a rosco bloodline 11.5”

    • @vanderwell07ify
      @vanderwell07ify 4 года назад +3

      I just bought one recently also

    • @DontTreadOnPeewee
      @DontTreadOnPeewee 3 года назад +3

      @@vanderwell07ify How do you gentlemen like them? I'm about trying to decide on their 11.5 or 12.5 for my next build. Any info would be great

    • @vanderwell07ify
      @vanderwell07ify 3 года назад +1

      Good to go!

  • @DB.KOOPER
    @DB.KOOPER 4 года назад +39

    It's really interesting to me how the erosion of the gas port occurs towards the _muzzle_ and not the chamber. That's the opposite of what I'd assume would happen. Very educational.

    • @kentuckyboy541
      @kentuckyboy541 4 года назад +12

      Yeah, me too, but then when you rethink it it makes perfect sense. The gas isn't forced through the port til after the bullet passes the port so it's like back pressure...

    • @bravomedicalsolutions3862
      @bravomedicalsolutions3862 3 года назад +1

      I believe this occurs as a result of a concept called dwell time.

    • @seanoneil277
      @seanoneil277 3 года назад +2

      I'd have thought the same because the combustion contaminants arrive at the gas port from the chamber side. But I guess it's because the round drags the plume of contaminants past the gas port and the gas port is a "catch" for the stream of contaminants, eroding the muzzle-side lip of the port.

    • @me2bfc
      @me2bfc 2 года назад +42

      It’s like driving over a pothole. The first edge of the pothole doesn’t take the impact of your tire but the second does. The gasses are contained until they pass the chamber end of the gas port and flow over it then crash into the muzzle side of the port.

    • @SKELETOR702
      @SKELETOR702 2 года назад +7

      @@me2bfc perfect analogy

  • @paulhughes3961
    @paulhughes3961 4 года назад +7

    That's reassuring since I recently finished a build with a Rosco 14.5 .223 Wylde barrel. Haven't had a chance to shoot it yet because if the pandemic.

  • @thatoneguy454c
    @thatoneguy454c Год назад +1

    If a barrel makes it to 26000 rounds before experiencing Noticeable accuracy loss. I would say that is a good barrel.

  • @gameon2081
    @gameon2081 Год назад +1

    I heard you say that you don't use copper brushes to clean your barrels unless that they are really really bad with corrosion now my question is why every kit out there including those boar snakes always come with copper brushes if that's the case then I have been destroying my barrels so what type of brushes should I actually use just to remove carbon and crap after couple of trips from the range? Thank You in Advance.

  • @nedflanders5649
    @nedflanders5649 2 года назад +5

    I love these videos. Learning way more about firearms in these short videos than I have in the past 20 years in the military and civilian.

  • @jamespayne4459
    @jamespayne4459 4 года назад +19

    I subscribed within 2 minutes of the start of your video. I love the straight forward, technical approach and data driven analysis. I hope I'm not casting aspersions when i say it's like watching Chris from Small Arms Solutions from back in the day when he was gaining all the k knowledge he shares now.
    Excellent content sir, looking forward to perusing the rest of your videos.

  • @SETSfirearms
    @SETSfirearms 4 года назад +4

    Rosco barrels are the most underrated barrels, I got an 11 inch on a 2A armament handguard with a basic ass upper receiver, I'm getting better shot groups on my 11in then my 16in

  • @themostdopekids
    @themostdopekids 4 года назад +2

    Why do you use nylon brushes over bronze brushes? Does the bronze brush cause any damage or issues to the barrel? Thanks in advance!

  • @bensears7499
    @bensears7499 2 года назад +1

    Rosco barrels vs say, FN chrome lined or Daniel Defense chrome lined?

  • @peterodonohue2482
    @peterodonohue2482 4 года назад +21

    This Channel is freaking amazing. I am from Australia, we arent even allowed AR's here and I love this stuff. Brilliant content, you know your stuff by all accounts. SUBSCRIBED.

    • @GTFBITK
      @GTFBITK 3 года назад +2

      You should be allowed to own an AR15. Leftist bedwetting is ruining the world.

    • @pimenjoyer.221
      @pimenjoyer.221 2 года назад +1

      @@GTFBITK Freemen don't ask

  • @ericohop5704
    @ericohop5704 Год назад +1

    Rosco,s barrel line is colt , I worked on the barrell line at colt , the machines were taken out , to rosco,s

  • @jcgardner5852
    @jcgardner5852 2 года назад +1

    I would bet on fired with supressor they really heat up the muzzle area.

  • @n6mz
    @n6mz 4 года назад +11

    17:10 I haven't seen one of those push-pump solvent jars since I was 17 years old (a LONG time ago) repairing power supplies for NCR mainframe computers. We used them to dispense isopropanol to clean solder flux from circuit boards. As if I didn't LOVE your channel enough already ... thanks for the ear-to-ear flashback smile.

  • @scottamy6496
    @scottamy6496 3 года назад +2

    Just picked up a Rosco Manufacturing 12.5" barrel to build a new upper...can't wait to start my attempt at 26,000 rounds

  • @realisrealite5554
    @realisrealite5554 4 года назад +3

    Even with the gas port erosion the gas port is still smaller than many other mfg gas ports.The weapon seems to have been properly gassed.I've been overlooking Rosco and several other mfg but will be checking them out.I only buy AKs if Akoperators union clears them and now when I'm looking at barrels and bcgs I'll see if you clear them.

  • @popsk4145
    @popsk4145 2 года назад +1

    Mind blown 😳
    Should I not be using brass brushes to clean my barrel? Is that a dumb question?

  • @cboli9418
    @cboli9418 4 года назад +3

    Need a chrome lined barrel with that many rounds to compare.

    • @mossydog34
      @mossydog34 4 года назад

      BCM filthy 14 went past 30,000 rounds.

  • @enluzenment
    @enluzenment 4 года назад +2

    Nothing else matters besides where I can find that thing you have your acetone in. I NEED THAT!

  • @seang1032
    @seang1032 2 года назад +2

    This is why I love and prefer Rosco barrels. They come dimpled but you can still pin the gas block if you have a jig or take it to your gunsmith. I currently have about 15k rds through my 10.5 rosco and it only sees solvent, patches and a nylon brush if needed every 1000 rounds. For those that say I should clean it more, it's my training gun and rosco has a decent price when it comes to barrels. I'll buy a new one when it's time.

  • @Fender18241
    @Fender18241 3 года назад +2

    for a $130 barrel after that many rounds, thats pretty damn good!

  • @raydon14ify
    @raydon14ify 4 года назад +4

    I wonder what erosion on LMT’s 45 degree gas ports look like

  • @ddmirolli
    @ddmirolli 3 года назад +4

    I've never been more proud to run Rosco barrels

  • @a2birdcage319
    @a2birdcage319 4 года назад +5

    Please do more barrels ! This is awesome

  • @vampyr2936
    @vampyr2936 4 года назад +2

    To be entirely fair, 26k+ round count isn't bad for, I'm assuming several courses of, hundreds of rounds in full auto

  • @creightonleerose582
    @creightonleerose582 2 года назад +2

    Impressive!
    -Only barrel Ive ever shot out was a S & W CL 16" 5.45x39 that had around 15K as to round count, 70% of that number primarily ComBloc corrosive 7N6-(EXTREMELY well cared for during the rifles firing life-Windex-water wash n' flush minutes after shooting/cooling, then a deep hot-water rinse/scrub, dried, then followed by solvent clean usually no longer than 20 mins after each range trip)-....No S-L-O-W degradation in performance either!
    -One shot being accurate, the next: Keyhole city, but still hitting a 9" pie plate at 20 yards accurate. Every projo hitting plate sideways....
    Picked up an Xtra ROSCO 10.5 pistol barrel, & although its not sitting in anything but a box & un-shot, I'm VERY impressed with just the machining/Surface finish for being a 120$ barrel!...>They are GORGEOUS!<
    WELL worth the cost IMHO....

  • @Jmastffp
    @Jmastffp 4 года назад +2

    How much would a guy need to budget for a set of gauges like you're using, and does anyone besides PTG makes these. Big PTG fan. Just wondered what the options were. THanks for your knowledge. Wish I could give you more than one thumbs up

  • @1nv1c7u5m4n30
    @1nv1c7u5m4n30 4 года назад +3

    How have I gone on this long without knowing about your channel. This is gold. You've earned my interest and a subscriber.

  • @brazzy1467
    @brazzy1467 3 года назад +3

    I have a 11.5" Rosco barrel and I love it.

  • @americannationalist1110
    @americannationalist1110 3 года назад +2

    I just picked up one of these 10.5” Rosco barrels on sale for $99 bucks. Can’t beat that deal. The gas port size on the barrel I bought says .75 so it’s going to be over gassed but at least it will eat anything I feed it.

    • @littlejackalo5326
      @littlejackalo5326 2 года назад +1

      0.750" is the gas block size. That is the outside diameter of the barrel where the gas block attaches. It doesn't have anything to do with the size of the gas port or the rifle being over gassed.

    • @americannationalist1110
      @americannationalist1110 2 года назад

      @@littlejackalo5326 you are 100% correct. I got a bit confused but yes that’s correct. One thing I do NOT understand though is why most companies don’t list the actual gas port size? Why is it like some secret spec they don’t want the public knowing lol. I would have liked to know my gas port size.

  • @mattsterpiecenjmaflva9956
    @mattsterpiecenjmaflva9956 3 года назад +1

    27k rounds through a $100 barrel. I’ll take that all day any day.

  • @TheMisanthropeLives
    @TheMisanthropeLives Год назад +1

    Big fan of Rosco barrels.

  • @jamesrice6096
    @jamesrice6096 4 года назад +2

    Is the alligator cracking the same as fire cracking?
    We covered this in school but I only ever saw one good picture with some cracks from another source

  • @lighturpl3
    @lighturpl3 4 года назад +2

    TBH I've left the demagnetizer on over the weekend... the whole thing was like 200 degrees when I got back.

  • @masterxiong7368
    @masterxiong7368 2 года назад +2

    Very impressive. My handgun has over 30k rounds through it but non of my rifles have anything close to that number. Can't wait to see how my rifles will be when they are at those usage.

  • @nealcleveland4954
    @nealcleveland4954 4 года назад +3

    Excellent review. Good bench practices with your tools too.

  • @boosted95
    @boosted95 4 года назад +2

    Man don't that piss you off when you're not even to 27k rounds yet and your barrel starts to loose accuracy.

  • @hulksmash6858
    @hulksmash6858 22 дня назад

    I just won a 20 inch wylde barrel sauce pack from Rosco, and I am super excited for my new build!

  • @Frankypunpun
    @Frankypunpun 5 месяцев назад

    I also am guessing due to it being short and the port pushing gas forward towards muzzle combined as mentioned possible increased back pressure from suppressor or similar muzzle device, that area became the hot bed for wear. Very short dwell time plus inability to expel gas aka back Pressure. Still amazing ability to demonstrate functional cohesiveness of rest of barrel. Impressive.

  • @shawn2763
    @shawn2763 4 года назад +2

    And I'm some how still learning stuff..ty

  • @ClaymoreClay101
    @ClaymoreClay101 2 года назад

    Is having accuracy issues after 26,000 rounds really that unacceptable? I feel like that is a respectable number of rounds and AR-15 barrels are very easy to replace.

  • @danw7156
    @danw7156 2 года назад

    Do you know if they fired 26,000 rounds without cleaning? Or did they stop and clean/ lube it every so many rounds???

  • @chupachuuups706
    @chupachuuups706 9 месяцев назад

    Can you use 70% rubbing alcohol to clean rocksett? Hardened or that goo stage when installing a muzzle device but remove it for shim timing?

  • @illbot789
    @illbot789 4 года назад +2

    I have heard these barrels have cycling issues, is this true? I want an 11.5 but havvent bought one yet because of the gas issues i heard about. Please help!!

    • @Gunny11795
      @Gunny11795 4 года назад +1

      have an 11.5 from them on my latest buid, 2k rounds in and not a single issue

  • @shawnhuk
    @shawnhuk 4 года назад +3

    The melting pad is why I’ve taken acetone out of my machine shop and use only iso alcohol.

    • @greensheen8759
      @greensheen8759 3 года назад

      Mineral spirits are great for cleaning out carbon too and it's plastic/foam safe

  • @Turboy65
    @Turboy65 Год назад

    What you call "alligator cracking" is properly called Brinelling. But I suspect you know that.