Rusty rifle barrel inspection. "All that glitters is not gold" .

[@ozzistraightshooter9273]

You can see more about the AU-PRO90 camera at, www.ebay.com.au/str/ozzistraightshooter

[@Halfmilesniper]

Not too long ago I picked up a Teslong borescope, and much to my surprise I was shocked at the condition of my bores, which I had cleaned pretty well (or so I thought). Quite the eye opener and now the scope is a regular part of my cleaning ritual.

[@ozzistraightshooter9273]

As you say a bore scope is more valuable than most recognize.

[@keithwright3260]

I don’t know if that barrel is screw cut or if a moderator has been used. Here in the UK they are common place. Mods will cause bad rust pitting on a barrel if left on the rifle even for short periods. The ammonia produced in mods is amazing. I now attach and remove mods directly before and after use. Run a bore snake through it and clean it regularly. My RFD demonstrated one shot through a brand new mod. The stench of Ammonia after one shot was unbelievable. The problem doesn’t seem to affect stainless barrels nearly as much however they will still rust.

[@GodWasAnAlien]

I live in Louisiana, doesn't matter how long you leave the AC on, without a hardcore dehumidifier going 24/7 (which I don't have) you're gonna get spikes up to 80% humidity inside some days. Aero sent me a barrel one time that they swore was CrMoV but I'm pretty sure was 416R (had the wrong sheen to it and was marked CMV), and it rusted in the box sitting on the shelf in 3 months before I ever built the rifle. They RMA'ed it for me and when I mentioned it didn't actually seem like Chrome Moly to me, the new barrel I got was lighter, a different color, and appropriately stamped CrMoV instead of CMV. But yeah, I too would love to know how that happened. I'm paranoid as all get out about that happening to my barrel, so at first I kept my guns stored soaked in oil, then later on I got a can of RIG grease and started coating all my stuff with it. I even went a step further and started vacuum sealing my guns lol.

[@frankcarver8912]

Haha as a paranoid gun enthusiast myself I got mad respect for this.

[@wiglafthegrnlander4757]

I’ve got an old rifle, I bought it in South Carolina. It doesn’t shoot worth a shit, this is probably why, thanks.

[@Johnny-jr2lq]

I have a 20” Faxon match barrel that I keep very clean. Well I finally picked up a Teslong bore scope. And it has one spot of pitting in it I truly believe it was from the manufacture. I always clean my rifle’s after shooting then. And this particular barrel has NEVER seen rain in my possession. Just light range trips in good weather

[@ozzistraightshooter9273]

Hi, it is quite possible the barrel had some rust in it from the manufacturer. If it is small it probably will have no impact on accuracy. have a look around the pit mark after shooting to see if the area collects extra copper fouling. If there is not much extra fouling it is probably not having any impact on the projectile. The muzzle is the most critical area.

[@Johnny-jr2lq]

@@ozzistraightshooter9273 You are 100% correct this barrel has produced consistent sub MOA accuracy. It just bothers me that I paid 300 + taxs and shipping. I was expecting a perfect barrel and technically I wouldn’t have known the wiser if I didn’t get a bore scope.

[@dougkahler7152]

I’ve read that when you clean your rifles you want a few dry patches to completely clear all moisture from the bore. Then run your patch of oil let it soak into the pores for a few minutes then wipe out the oil with a dry patch because if you have any moisture in the bore when you put oil on it it will seal in the moisture if you leave the oil in the bore and they claimed that’s worse than leaving a dry bore. Now before all you people start telling me I have no idea what I’m talking about the Marines make us have a completely dry bore before they accept it in the armory as clean rifle and I do believe they know what the heck they are doing to keep a rifle as rust free as possible!

[@sahmadi1000]

Thank you. A training video is needed to tell us for example what clean grooves look like. I keep cleaning a barrel and no matter how much I scrub the grooves show black but lands look clean.

[@StagArmslower]

I had a Browning BLR in 308 with pitted barrel but it still was shooting well, the cleaning was a PITA

[@aktrapper6126]

I recently purchased a Teslong borescope, it was long overdue but they are affordable now. I have learned a lot about rifle bores, why some of my guns got really good accuracy and why some did not. I live in the far north and when you bring a rifle in from the cold it straight away starts to condense moister on the cold steel, its easily wiped off the outside but the inside of the barrel is not so easily cleaned. There are a few corrosive chemicals in burnt gunpowder that when mixed with moisture will easily rust your bore. I don't know what the answer is other then stainless steel.

[@CSAccetura]

I just decided to go through my safe and inspect my weapons after 3 years and my glock 19 gen 3 barrel has rust just inside the crown. This gun has never been out of the box let alone shot

[@markduncan7638]

I am guessing poor storage and high humidity. Love that borescope you are advertising with the screen, may have to invest in one soon.

[@planeiron241]

teslong 55.00

[@vomact1052]

YIKES! I am glad I just bought Telsong for my guns.😳

[@brandonbentley8532]

My German grandfather always told me to clean the rifle immediately after the last shot while the barrel is still warm. Keep at it worh copper solvent, regular solvent, and until the patches come out clean! Hehe...not trolling here but my 1914 mauser sporting rifle made in oberndorf has a nicer barrel then this poor rifle featured here and my rifle had corrosive ammo shot through it for 100+ years!

[@rudeboi9625]

Not properly lubing the inside of the barrel or bore this needs to have a thin shiny layer of lubrication applied where metal on metal contact is present I know oil sucks but brass is continuously being pushed down a metal barrel the brass is metal like this would of change the outlook on that barrel drastically but it also looks like someone shot the wrong round it was successful but it caused pitting in the inside of the bore then stored & not lubed properly caused the unfinished spots in the bore to start rusting

[@RetrieverTrainingAlone]

Do you mean copper? The brass from the case shoulder/neck seals the chamber at ignition. Copper from bullet jacket will coat the rifling/lands down the barrel.

[@rudeboi9625]

Missy Skeeter I’m not taking any chances could be copper deposits a very good chance but it could also be rust deposits where the bullets stratches the finish of the inside of the bore enabling rust because the finish is gone idk I’m just gonna attempt to clean and if there are copper deposits that should be cleaned out also because that’s gonna cause unwanted grit & friction in that barrel when u decide to shoot it again potentially causing the bores finish to start pitting

[@RetrieverTrainingAlone]

@@rudeboi9625 Could the be scratches from an uncoated cleaning rod and someone who did not use a bore guide? What does the crown look like with a borescope?

[@Strutingeagle]

I am guessing it was a button rifled barrel. If there are metal artifacts in the barrel when they pull the button through it gets ironed into the barrel and later starts coming off leaving these kinds of patterns. The manufacturers know about it and let it go because the justify it by saying it is a hunting rifle. Chances are it will be a good shooter but will need frequent cleanings to keep it at its best. For hunting you will never notice the difference. Take a borescope to a sporting goods store and see how disgusting the quality is. I will be glad when most people own borescopes as it will force higher quality from the manufacturers.

[@ozzistraightshooter9273]

Hi, Yes I agree with your comments. More people should buy from Custom rifle builders with higher grade barrels. Once you own a really good rifle you will never want to buy one of the mass market models again.

[@Strutingeagle]

@@ozzistraightshooter9273 Hammer forging can also produce these blemishes as well. Don't be discouraged with the rifle as it might be pretty darned accurate as it is. The borescopes magnify these defects. Totally clean all the copper from the bore. Then shoot 2 or 3 shots. Run a slightly oiled patch down bore to get the loose crud out. Then see if these spots are picking up copper. Some do and some don't.

[@Johnny-jr2lq]

Yes Sir completely agree I have a Faxon 20” match barrel that I keep very clean. It has 1 small spot that looks like a worm ate the metal away. It looks exactly like what a old log looks under the bark that a termite got to. I don’t think it’s rust now that you mentioned it that’s exactly what happened. It’s messed up though because this 20” barrel was 350 dollars from Brownell’s. But when I looked down my Krieger M110 profile barrel that’s cut rifled looks like a million dollars perfect. And you can tell it’s prefect when you run a tight fitting patch through it. It just glides right through it very easily no resistance at all. But yes the more people who get bore scopes the less these companies will get away with selling junk. 350 dollars for a 20” barrel isn’t cheap.

[@georgelara96]

HOWA barrels are hammer forged.

[@Dan-di9jd]

Looks bad but may not have any adverse effect on the rifle itself.

[@markstrain9429]

sensational video. can this be fixed or just live with it? thx

[@DerWaidmann_]

Is this a chrome lined barrel?

[@Chevy2U]

I'm no expert, looks don't mean much when using a endoscope, it could be much worst and still produce sub moa. Endoscopes are great for viewing copper & carbon build-up..etc. My new Tikka T3X Tac A1 barrel looks like spider webs inside, but shots .5 moa all day. Same with my Savage(s), pits and tool marks, but sub moa rifles. "Never judge a book by its cover".

[@ozzistraightshooter9273]

Hi, The owner of this rifle took this one back and had it replaced with another one that was identical except the barrel is much smoother internally. The new rifle shoots much tighter groups, so I believe the barrel internal surface condition is an important factor in accuracy. However you are correct this is only one factor and there are many factors that influence accuracy. I have another special camera that shows changes in barrel diameter and if a barrel remains tight on the projectile near the muzzle it also help accuracy considerably..

[@curiousgeorge342]

Nice rifle looks high grade

[@ssswdon]

I purchased a Howa 1500 barreled action, shot 10 rounds through it, ran patches, and stored it in a conditioned space. Took it out to start reloading and wanted to look at the barrel with a scope, I found the corrosion, and it took 3 weeks to clean(patches, brushes and jb). Is there something up with these barrels that causes this ?

[@johanswart8116]

I clean my rifle after shooting and put oil in barrel for storing

[@vomact1052]

Yikes!😳 I am glad I just pruchaes a Telsong for my guns.

[@DA-xg4qu]

I bought a Howa 223 Mini Action 1 in 8 twist heavy barrel threaded 1/2x28 brand new off gun Broker and it has the camo pattern stock and was a little over a thousand dollars after taxes and shipping and after receiving it I bore scoped the barrel and it was exactly like the one you have something must be wrong the steel there using so I replaced with McGowan HV barrel shoots under 1/2 inch at 100 yards and just bought a Howa 6.5 Creedmoor barreled action and the barrel did not have rust I don't think its rust it looks like bad places or voids in the steel from when they pulled the button through it

[@ozzistraightshooter9273]

Thanks for your comment. I know Howa has great quality control, but something has gone wrong with some rifles.

[@leoguy1609]

Smith & Wesson had issues with Rust of some of their M&P pistols stainless steel slides, eventually was a metallurgy problem with the supplier who I believed lost the contract, was this caused by being stored in a gun case? When I store my firearms and don't intend to shoot them for a while I used either Corrosion X or Strike Hold on all the metal parts and haven't had any issues.

[@ozzistraightshooter9273]

Thank you for your comments. I agree metallurgy could be the issue in the rifle barrel. great comment.

[@janwilliams178]

Can this pitting be repaired? I just purchased a brand new rifle barrel that looked fine when I looked through it but today I looked through it with a bore scope and see rough looking pitting adjacent to the gas port.

[@ozzistraightshooter9273]

Hi Jan, Some pitting may not have any adverse effect on the operation or accuracy of your rifle. If you shoot the rifle see if the pitted area starts to collect a lot of copper fouling. Sometimes as the rifle runs in the pitting may smooth out. It is something that you should keep an eye on with your scope to see what happens as you use the rifle more.

[@Dan-di9jd]

You may not have been the cause of this pitting. I gotten a new barrel early in the pandemic and looking at it through the borescope it had pitting all over sort of like this video. I shot it some and it works wonderfully so I'm not too worried. As ozzi says, check for extreme copper build up but on mine I use wipout bore cleaner so it remain very clean.

[@kencleg7721]

Bore paste on the bullets and shoot it this polish the bore cleaning up imperfections

[@kencleg7721]

Break in is important 1 shot clean ss barrels only 20 x then shoot 2 clean 5 x then 3 shots clean then 4 if bore doesn’t come clean back to 3 chrome Molly bores is 30 shoots clean after each shot even a new barrel hand reamed from krieger recommended break in

[@johnsmith-by3yg]

i got a used rifle from around 1969 the bore shines i can see groves but they don't look great but i can see them, how can you tell if its worn out?

[@ozzistraightshooter9273]

Hi John, A barrel may be worn but may still be satisfactory for many applications. For competitive target shooting you want a perfect barrel. For hunting within range limitations it may not be very critical. Make sure your barrel is as clean as possible. Use a bore paste and scrub it. Make sure there is nothing obstructing the barrel. Rust or lead build up should all be removed. If your barrel has no obstructions or build up or rust or lead it should be safe to shoot. If you can shoot it then see how accurate it is. If you have a bore camera look down the barrel after shooting to see if there are sections of the barrel that are collecting fouling. Rust spots will often collect a lot of fouling. Some barrels will clean up very well with some shooting and scrubbing with bore paste. If you are not experienced with looking at barrels please take the rifle to an experienced gunsmith and get their opinion.

[@paulhickner8088]

Nice video. What borescope camera are you using?

[@ozzistraightshooter9273]

Hi, This is the Industek AUPRO-90 sold by ozzistraightshooter. It is the best camera we have tested. You can see fine detail of the barrel surface not visible with other cameras we have tested.

[@mikejoeinc.1478]

It's not rust . Its the metal cracking due to high pressure and high temperature .

[@bobvi5490]

no that's not what fire-checking looks like

[@emmvee1678]

Almost looks like crappy machining. Like galling.