Mauser Counterbore follow-up
Вставка
- Опубліковано 4 лют 2025
- Removing a nasty bore obstruction to allow the 1898 from episode 134 to be safely fired. NOT a tutorial...we show what you need to learn, not how to do . Cannot perform at this level? Do NOT attempt.
Support us: / anvil and a big shout out to those that do.....
• Mauser Gew1898 Conserv... Anvil 0134
Dude, every time I see you do that with your cigar I feel like I can smell burning hair!
Yes, counterbores were an acceptable fix for muzzle damage, OUTSTANDING!
Another save. Outstanding work. Counterboring does not destroy accuracy. 9 Hole Reviews released a video today of a 91/30 Moisin shot to 500 yards with only 1 miss, and the bore was counterbored. Outstanding explanation Sir.
They shot that thing out to 800... But yeah. It is a very legit way to refurb a gun with a dead muzzle.
Both of my M-44's have counter-bored muzzles which were done during arsenal refinishing in Russia....and both shoot great. I don't think the one rifle was ever issued as it's pristine and likely didn't need the muzzle counter-bore...but I think they just did them all as it does no harm and is only a positive thing. Maybe for 'collectible' rifles a counter-bore is not desirable but functionally it's a great thing to have.
@@krockpotbroccoli65 they did, but to 500 with only 1 miss was very impressive.
You gave this rifle a new start, what you did for this 100 some year old beautiful rifle was a blessing. Because of your hard work, this rifle will last another hundred years hopefully
That's not rust , that's bore patina.
Cool repair well done
I've had a barrel in that lathe and that makes me happy.
Nice work. Nice equipment. You turned a wall hanger into a shooter.
I always love when people go:"Oh there is this guy who has been doing this for 40+ years, but I have done it once in a shed, so I clearly know better!"
The people complaining about "ruining" a historic piece are usually the ones responsible for it to be in such a bad condition in the first place. Having no idea how to do the proper maintenance and somehow believing that the accumulated gunk on it has historical value...I've seen so many guns which look nice on the outside but are rusted messes under the wood, it's a shame.
Because it’s a cop out for not caring to care or clean your guns
What a coincidence, 9Hole Review just posted a vid shooting a counter bored Mosin out to 800 yds!
A lot of mosins got counter bored
I don't understand the hate towards counterboring the barrel. That is a legitimate arsenal repair made by all the arsenals of Europe and beyond during the time period this rifle was made. The muzzles wore out from being cleaned by steel rods and got counterbored. Not a big deal.
Were it my rifle I might have recrowned it too but that's captain's choice on a job like this.
I love watching a skilled lathe operator. Excellent work.
Great job. I'm glad you showed the time it takes to set up the machine. People don't realize how time consuming this is.
People are so damn sensitive. Nothing about that job "ruined" that barrel. That job kept that rifle in the gene pool for the next 100 years. Well done gents!
Mark, you are a friggin WIZARD! I've learned a lot from watching you, but in no way could I ever master the art of smithing like you have. You clearly are the "Master of 5 Magic's" God Bless.
I think a lot of people having negative views of your work are probably just used to seeing the kind of idiots who don't know what they're doing destroy things based on the idea that everything old should be " improved " by bringing it to their perception of factory new condition.
I hate when people do that to everything from a hammer or axe to a knife or a firearm.
People need to learn the different between a rehabilitation and a restoration, and they need to understand that something is only new once.
What surprised me about this wasn't the fact that the barrel got counter bored. It was that, apparently, there are people who consider that "ruining" a gun. Years ago I was looking at Mosin Nagant rifles. Virtually every example that's not a Finnish rebuild and dates to before the 1930 redesign has a counter-bored barrel. Any country that needed servicable rifles, but couldn't afford to replace their entire inventory, did that.
Seen a few examples in various surplus rifles...they always seemed to shoot true.
A lot of people forget that these are functional tools first and foremost, and are only worth scrap if they arent functioning properly. Those are the types of people who'll cringe at any maintenance and repair that isnt WD-40 and a barrel swab
Probably the same people who emthuse about the patina on their historic piece?
Marvelous, thank you for showing and explaining such a fascinating technical work around, to make such a fine old rifle, safely shoot-able again. 👍
The counter bore turns this "Hey, wanna see my Mauser?" into "Hey, wanna shoot my Mauser?" I imagine that there are a lot of machinists out there that would have run an indicator on the outside of the barrel at the muzzle, and called that good.
I just find watching you artists at work just so relaxing! Thanks, gents.
I love watching your videos on these old war rifles and sporting arms of the past!
The way you take the time to dial in a 0.0001" to counter bore this beauty and restore the barrel to shooting condition is a work of art!
I have seen a few rifles having this done, and you could tell it wasn't recent, and it has been fired quite a few times since, shows the process works!
I did the same on a 1903 Springfield from 1933 where I assume soldiers in the past had worn out the front rifling completely away with poor cleaning routine.
After counter boring and machining a new crown on it she shoots 100%.
Counter bore is the best call ! Very nice job Sir . Done that more than once or twice my self.
Hey Mark, great content. I'm not particularly into guns, since I have no need for them, and by the end of the day they're just tools. but I do like old crap, history and mechanic ingenuity, and you deliver on all fronts.
Hey man machinist here. I don’t wanna be “that guy” because i know you know what you’re doing. But be super careful running any helical flute endmill in a morse taper drill chuck. They have a tendency to catch the material and pull the taper out of your tailstock and break your endmill. I wont say i haven’t done it in a pinch, but a micro boring bar is a lot safer.
HUH????
@ is there something you don’t understand?
Don’t read the comments from the animals in the fields. You are amazing Sir.
I saw one of the comments and it was totally without foundation. The owner of this rifle can now enjoy it
@@kamelionify Bonus...it's MY rifle.
Nice work my friend. Most might have “thought” this was a SIMPLE fix but you did the best thing all around. Wonder how a mod 70 would stand up to that same setup?
Hmmmm….
Counterboring was a normal practice during and after WWII during refurbishment, especially by the Finns with captured Russian rifles.
Brilliant job guys! I have a 303 with the same problem, I fired a few shots threw it after soaking in knoil. It worked a treat and it shoots lovely.
To the critics. If he didn’t counterbore it, it’s just a wall hanger.
He already ruined it in the first episode
@@SpliefDaGrief him blasting the gat at the ending of the video shows he didn't ruin it, but that he repaired it
@@SpliefDaGriefno he didn't.
SpliefDaGrief obviously doesn't know anything about gunsmithing. Zero.
Left alone, it would have been not just a wall hanger, but also a time bomb.
There you go folks a True Master Gunsmith at work . nothing else needs to be said.
Ah parce qu'il y en a qui sont capable de critiquer ce travail !!!! Moi je ne me le permettrait pas. Mark est l un des meilleurs. Beau travail comme toujours
People got mad over a counterbore? That's how a rifle like this would have been repaired by the German army to begin with. Some people are impossible to please. Gotta say, that's a beautiful piece, and the light pitting in the steel is very attactive. I kind of wish guns came out of the factory like that.
The cigar behind the ear... I'm dead. 🤣
I do the same thing with my carpenter's pencils and Sharpies. I even walk around with them like that sometimes. Wish I could stick a lit cigar up there, would make my job easier some days, but I work at a VA hospital. ☹️
Thanks for saving another peice Mr Novak
I can’t stand folks who get poopy about fixing old guns, they are tools they were built to be used, not decorate a room with…
Triggered
I agree with keeping an old gun usable but i dont agree with sporterizing. If you want a modern gun get a new gun dont dress up a 90 year old rifle into a ruger american lookalike.
@@craigthemonke794Old mauser actions on bad barrels seem to be salvageable, ask Larry whatshis face. So I partially agree, Don't sporterise a good gun, but do cannibalise wrecked guns.
Love watching and learning techniques of manual machining, i developed a great interest after going to work at a shop where i had to teach myself how to run a lathe with zero experience.
As Adam Booth would say, "Tighten your highs and loosen your lows"
Uncle Buba would have just upped the powder charge, he sure looked funny with that bolt sticking out of his head.
Such precise work. Who knew it would be fun to watch?
Arsenals counter bore frequently. The condition of the throat and muzzle is critical. It’s harder to deal with throat erosion. But you can get a lot of life out of a barrel after a counter bore
Is what you did there essentially the same as chopping that much off the barrel and moving the front sight back? Basically gave it a new crown while preserving the overall appearance of the rifle?
You make it look easy. But, that is fine work.
Good work, I've had to do a job similar to this. In my case, a round was lodged 3 inches near the end of the muzzle of a colt lightning in 22 that was completely rusted all through the bore. Saved most of the bore except that last 3 inches that had been plugged with a round+water+dirt+rust (Horrible storage on client side), discussed it with client and agreed to have the 3'' chopped. After that, indicated and re-crowned on lathe. Went to a range and the group at 20 yds was horrible, restoration for shootability was fine, performance not so much. Good job on your side
Counterboring was reasonably common to save barrels on military rifles. When I imported a batch of Nagant rifles, there were more than a few with counter bores several inches deep as an example…
Thanks man! I learned something today. I never thought of using the steady rest in conjunction with the 4 jaw to zero the muzzle. I like the way you think.
You’ve convinced me that I need to find a friend with a large lathe… it would be a pleasure. ;)
I have several Mosin 91s captured by the Finns. Almost all of them were counter bored, presumably by the Finns.
Didn't the Finns rebarrel a lot of their Mosins with higher-quality Sako barrels, or was that just the M39? I know the M39s had both the new Sako barrels and improved open sights.
Another one ready for duty, good stuff, No you did not ruin a relic, excellent job.
Awesome Mark! Thanks again for your detail to details, Cheers! I'm lighting a cigar now, LOL
Thanks for a “plain English” explanation of the lathe setup. I understand a lot of the work you do, but lathes go into a version of heavy lifting in your art I have never been able to wrap my head around.
A lathe can be seen as a horizontal drill press.
You can put a bar of steel in the jaws, and use a file or cutting tool to modify the outside surface of the stock.
You can mount a drill bit, reamer, in the tail stock jaws, and drill or smooth holes in the inside of the stock.
A lathe is a very versatile tool, and if you do metal work, you should invest in a small lathe!
Yes sir - it's just, frankly, fascinating (and a little overwhelming) to consider the precision. Functionally, I "know" a bit of what lathes can do, but the operation, set up, and results? Man, it's all black magic, lol. I always enjoy Mark Novak's videos due to the explanation and the time setting up shots and going a bit "deeper" into some of the nuance and rational. @@jeffreyyoung4104
Preparation, knowledge and skill turning a wall hanger into a shooting rifle - what's not to like
A counterbore is literally just shortening the barrel without it being visibly shorter from the outside. That's all. As long as it's done correctly the only effect it will have is the same effect that would occur if you shorten the barrel by the same amount.
Very informative. I have a no1mark4* barrel that will get the same treatment. Guns not worth much but the experience gained in doing the repair will be worth the effort.
The surgery was a success, Doctor Novak.
drill shanks are neat measuring tools, hole measuring, o ring grooves, centers.
Your videos are very informative and flat amazing
I can hear the keyboard kaptain mouser wifle kollectors screaming from my house Mr Novak!
Interesting. Mesmerizing. Precision. Mastery. Skills. More videos please.
Counterboring is kind of standard way of repairing the front of a barrel when you have a good barrel but a mucked up tip of the bore.
I have a French MAS 36 that’s counterbored. Think it’s counterbored only about an inch or so in. Doesn’t bother me a bit. It’s for shooting.
Once again Mr. Novak, thank you for yet another great video!
How is fixing a gun seen as destroying it? If it couldn’t have been fired then it’s a stick, you’ve given its life back! 🙏
probably because you're "damaging" original parts like the barrel
@@adamheywood113An already damaged barrel.
Well, if the gun belonged to Kaiser Willhelm, then it you can argue altering it is destroying a historical artifact. But this wasn't that. They made something like 91-125 million of these rifles and this wasn't in showroom condition. It really wasn't anything much more than a wall-hanger, so counterboring wasn't destroying it. And yeah, it'll give somebody the ability to experience "the feel" of using one of these guns, which brings history alive.
@@jd9119 I’d like it if the artifact kept working if you ask me, nothing lasts forever!
@@jaiseman5919 Would it matter if it worked or not? You're not going to shoot a gun with that much value. I really don't know what you would do to preserve it though.
Fantastic work, well worth it for a fine old rifle such as this.
Question. How deep of a counterbore would be "acceptable". My m1 carbine had a run in with a "non-corrosive" ammo and corroded the heck out of the front 4 inches. I am tempted to counterbore to clean it up without having to cut it down and mess with overall length.
He’s right I’ve been screwed a few times by people because I didn’t check the bores right always bring a light and check that bore
Nice work!! I really like the wheel attachment on the micrometer I've never seen one before, I need to find one!!
Thanks mark again for a great video, Man of many talents.
New life. Well done Mark.
the barrel IS the rifle. Every thing else is what make the barrel work.
There is a lot of truth in that statement.
While a 'new' barrel could be installed, it ruins the value more than counter boring the muzzle, and many old mil surp have been counter bored, so it doesn't affect anything on this old beauty!
Mark or whomever more knowledgeable than me please correct me here, but by doing this, the actual portion of the rifling that finishes engaging with the bullet is now internal to firearm so the true crown is inside? or is it since you are only removing the metal rifling that protrudes from the barrel internally, that whatever potion of the bullet that normally would be in the grooves is still able to touch the counter bored area and the crown is still at the end of the barrel as normal?
I am assuming the second?
Thanks
The crown is now recessed.
The crown is now at where the rifling ends inside of the barrel, the bullet will not touch the inside of the counterbored section, just like how a bullet traveling through a suppressor doesn't touch the baffles, assuming proper concentricity. Hope this helps
People who question Mark abilities need to slow their roll. The man knows what he’s doing.
Just a bunch of basement dwellers that have never had grease on their hands, their opinions are not with the amount of piss it'd take to fill their shoe.
I have seen a number arsenal refurbished Mauser rifles muzzles with their countered bored before they were put back in service.
Mausers weren't the only ones to get such treatment.
I've got a 1917 Enfield .30-06 that was repaired in this way by some now long forgotten government arsenal.
And it shoots just fine.
Beau travail !
Toujours intéressant de te regarder.
Merci Mark
I have a Turkish Mauser manufactured in 1940 that when I first saw the front muzzle I thought it was a 410 Shotgun, but found out that it had been counter bored at some point in its life.
Not just the Turks.
A LOT of Lee Enfields ended up with the same affliction.
Folklore had it that an oiled piece of cloth poked into the muzzle, was an ideal way to preserve a barrel. This was, apparently, common among target shooters..
I eventually found the direct evidence in a forgotten cupboard. The rag had dried out and become "crumbly". Very likely that the decomposition of the oil had also produced an acidic residue. This particular one was living in a reasonably "dry" part of the country.
There are several better ways to look after barrels.
Counterboring / "auxiliary" rifling The latter, first. VERY difficult, fiddly bit of "engineering"; unlikely to be worth the expense, even if you found a "matchingg" piece of the same type of barrel..
Straight counterboring? Not just the Turks got up to that caper.
In the "good old days", I scored a genuine battlefield "pickup' Russian SKS that had "patina" but was all there and looked like it had "been places". That chrome-lined barrel had been counterbored back about 3/4 of an inch to leave a crisp "internal" crown.
Why not just lop off the offending bit?
The folding bayonet locks over that proper muzzle section. What sort of revolutionary type would forego the ability to use a byonet?
@@bruceinoz8002 lol nice piece of history
fantastic ......Great explanation
Thanks for the walkthrough.
Thanks Mark. Wow very interesting and informative
people would probably be shocked to learn how many of their milsurps have already been done this way....long ago
Might it be an idea to blue the counterbore? For looks and longevity?
Thanks for the deep dive into this.
Considering the German Empire's solution to a bad barrel was often to replace the barrel entirely, I think it is fair to counter-bore instead of throwing away an otherwise historical barrel.
Damn, that is REAL machining.
Hello, that's a nice looking rifle. I once had an 1895 Chilean.
Master Gunsmith.
Very enjoyable episode Sir, thank you.
Best Wishes to everyone.
Facinating stuff thanks Mark
Cool beans! If your made you counter bore bigger would it matter if it were not perfectly concentric?
NICE JOB! That's a counterbore indeed!
Relining the barrel and precision welding of both ends to conceal the liner has been done in the past with excellent results.
Who paid the bill for that? Just curious......
Sounds great but unless you are paying yourself$$$$$$$$$$$$$$$$$$$$'ddddddddduh.
If a guy did NOT have access to a lathe, would it have been possible to get after that rusty area with a stainless bore brush sufficiently to remove enough of the rust to prevent an unsafe condition?
I thought I covered that....NO
That's a question with a dozen lawyers attached to it, not to mention moral considerations. There's no safe level of barrel obstruction. Notice Mark didn't aim for getting 95% of the obstruction, he removed it entirely. Hopefully making it safe for years to come and a thousand plus rounds. Any gunsmith would have to physically inspect your gun to give you an opinion.
@@marknovak8255 no Mark you didn't. you said you had "about a .030 obstruction that no amount of filing etc. would make it right" or something to that effect. I am not in the habit of arguing with other folks content, and I love your content, however I feel like I have been kicked around a bit for my question, which I though was a legitimate one. My contention, which I did not explain (my fault there) is that the barrel did not "grow" additional base material. the obstruction is iron oxide rust, and once removed, there will be less base material, and therefor a larger bore than the rest of the barrel. And as a result, there will obviously be no bore obstruction because there is now less base material than there was originally and all of the bore obstructing iron oxide would be gone. I think this could in fact be accomplished by filing, glass bead blasting, or possibly by many hundreds of passes with a stainless bore brush. the last inch of rifling would be trash as would the crown, and accuracy would no doubt be hot garbage, but I would also argue that it would be "safe" to shoot. Sorry... just felt like I had to defend myself a bit..
It's your gun Sir . Do whatever you please .
Great work
Hey mark i would love to know your Opinion about a project i am working on. I have a Original colt 1851 navy that sometime in the past. someone tapped the end of the barrel to put in a light socket . Turning the revolver into a lamp. I am trying to bring The pistol back to shooting condition. The pistol is in amazing condition other than the threads that go in about a inch of the Muzzle. I have Never done a counter bore that long. Would there be any issues from a counter Bore this long. i would prefer counter boring being the rest of the rifling is in Amazing shape.
Id have to see it to render any opinion
It sucks having to do that to a rifle that otherwise appears to be in great shape but at least it is now can be safely shot
Just checking - what was the big issue with having the muzzle screwed up? If you got rid of the mung and rust, what is the obstruction/danger or is it just appalling accuracy?
Rust is a barrel obstruction.
That bit of rust as Mark said: is enough to bulge the barrel.
Even if he physically or chemically removed the rust there's be enough rust pitting to affect the accuracy, so counter boring is the best form of maintenance to be able to shoot it safely and accurately.
Having the crown messed up in any way=appalling accuracy.
Mark I have a barrel vice can replacing the barrel be an option?
If you can find an original gewehr barrel yes but good luck with that
My favorite channel.
THANK you Mark for another great video 👍👍👍👍
Bought a auction rifle that had that done to it. It shoots great very accurate
As a total amateur i wonder if that little bit of deleted rifling will affect how it shoots ? Thanks from Amsterdam
It shouldent, this used to be common practice for millitarys to get a bit of extra life out of a given barrel, it should shrink the grouping not expand it.
not that it would matter in this case considering this barrel would have been unusable prior
Theoretically the bullet will lose a tiny amount of velocity. So the external ballistics will be reduced slightly.
But it will gain accuracy. Even if the muzzle wasn't to the point it was unsafe to shoot, the last thing the bullet and the jet of expanding gas touches is the muzzle.
Imagine If a space shuttle rocket nozzle was all damaged and had a piece missing on one side. The blast and thrust of the engine would not be even and the rocket would not fly straight. Same thing with a damaged muzzle.
@@EitriBrokkr and its worth noteing when we are talking about something like a full power bolt action rifle with a 22+ inch barrel, that tiny bit of lost velocity really is miniscule,
dropping a 22 inch barrel to 21.25 inches is really not going to make a diffrence larger than the margin of variance between 2 different cartridges
9-Hole Reviews just released a video testing the accuracy of a Mosin Nagant 91/30 which had been counterbored and got very good results.
@@therideneverends1697 Thank,, and it shows the gun community can be super friendly (i know: why not 👏🏽)
I never seen someone rest a lit cigar in their ear 😆 Mark is the man lol
Outstanding ... Again ! 😊