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Old 11-12-2017, 02:53 PM   #1
Ramey
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Default How many rounds till barrel replacement?

Anyone have knowledge about the average number of rounds that a barrel can take until it needs replacement?

Barrel in question is a Norinco Mak90

What are the FIRST signs of a barrel that is getting worn-out?
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Old 11-12-2017, 03:01 PM   #2
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Take a bullet and see how far down in it can go at the end of the muzzle...



If it hits the case.. its gone too far.
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Old 11-12-2017, 03:18 PM   #3
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If you take the time to actually learn to properly shoot an ak47 barrel wear has no relevance.

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Old 11-12-2017, 03:25 PM   #4
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Depends, somewhere between 20,000 and 100,000 rounds depending on use.

you play Bubba and dump mags every time you shoot, you'll need a new barrel pretty quick. But CHF chrome lined barrels are known to last up to and over 100,000 rounds.
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Old 11-12-2017, 03:28 PM   #5
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Quote:
Originally Posted by oakhandledsks View Post
If you take the time to actually learn to properly shoot an ak47 barrel wear has no relevance.

Much LOL!


OP, replace barrel after something like $25,000 of ammo has gone through the tube.
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Old 11-12-2017, 03:37 PM   #6
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Quote:
Originally Posted by Ramey View Post
Anyone have knowledge about the average number of rounds that a barrel can take until it needs replacement?

Barrel in question is a Norinco Mak90

What are the FIRST signs of a barrel that is getting worn-out?
If you can't consistently hit a regular sized paper plate at 50 yards it is "getting worn out", if the bullets hit the paper plate sideways then it is worn out. Barrel life depends on many things, no way to give you a number better than the previously stated range of 20 - 100k.
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Old 11-12-2017, 03:44 PM   #7
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Unless it’s FA only or you shoot everything with a bump stock, probably not in your lifetime.
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Old 11-12-2017, 04:57 PM   #8
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Keep practicing OP you will know when you go "where the hell did that hit."
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Old 11-12-2017, 05:00 PM   #9
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I think the barrel on your MAK-90 will out live you, OP!
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Old 11-12-2017, 06:28 PM   #10
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So, don't hold us in suspense....whats the round count on your MAK?
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Old 11-12-2017, 06:43 PM   #11
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Bullet tests generaly show wear from cleaning rod use.
It's a poor test to begin with.

Paper plates at 50 yards??
If you can't hold about a 1.5" group at 50 yards it's likely not right . Depends on how it grouped when new.

Your first sign will be it no longer groups as well as before and the accuracy declines. Generaly you will see erosion at the start of the rifeling. Once the chrome starts to go in the throat accuracy will start to go.

7.62x39 AK'S will hold acceptable accuracy for a very long time likely 20,000 rounds or more.

Doing nag dumps and heating the barrel u to much will greatly reduce the barrels life.

If your getting it hot enough to affect the temper of the lands of the rifeling that are more easly heated up then your damaging your barrel.

Also keeping a barrel clean matters.
Forcing carbon,critical and fouling down a barrel is not a good thing.
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Old 11-12-2017, 06:46 PM   #12
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I think that half a barrel (keg) is 124 pints of beer so a full barrel would be 248 rounds.
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Old 11-12-2017, 06:54 PM   #13
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If you take care of it, don't mag dump excessively, and let it cool off, clean it after using

probably tens of thousands of rounds.
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Old 11-12-2017, 07:11 PM   #14
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I keep great care of it, I bought it second hand and inspected the barrel - it had mirror finish and sharp rifling. I’ve only put about 250 Rrds down it so far; function checking, zeroing irons (wow buddy they needed it) and zeroing red dot later. Plus some fun-shooting.

Reason I ask is that I saw an AR barrel report that showed almost complete rifling loss after 6000 rds of steel cased ammo and at 15000 rds brass cased ammo. I wanted to know about where to expect AK barrels to be.
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Old 11-12-2017, 07:17 PM   #15
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Quote:
Originally Posted by Ramey View Post
I keep great care of it, I bought it second hand and inspected the barrel - it had mirror finish and sharp rifling. I’ve only put about 250 Rrds down it so far; function checking, zeroing irons (wow buddy they needed it) and zeroing red dot later. Plus some fun-shooting.

Reason I ask is that I saw an AR barrel report that showed almost complete rifling loss after 6000 rds of steel cased ammo and at 15000 rds brass cased ammo. I wanted to know about where to expect AK barrels to be.
From luckygunner.com?

They tortured the fuck out of those barrels to determine if brass vs steel ammo cost difference was worth it. Conclusion was brass ammo is completely not worth it and you'd be saving enough for a whole new rifle easy by buying steel cased ammo and that was at the extreme end.

Unless you see keyhole impacts or are around the tens of thousands of rounds range I wouldn't even sweat it one bit.
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Old 11-12-2017, 07:30 PM   #16
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In Russia and Ukraine, I know at least three guns with the confirmed round count of over 50 000 rounds (saigas). All three are still accurate (2-3 MOA).

In Izhmash, the legend has it that many years ago a CEO was curious, what is the barrel life of AK 103 (7.62x39). They started testing and had to stop somewhere around 50 000 rounds, cause it was such a waste of money.

I thing a lot of full auto rental shooting ranges in the US have even higher round count.
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Old 11-12-2017, 10:28 PM   #17
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Quote:
Originally Posted by Machak_Silver View Post
In Russia and Ukraine, I know at least three guns with the confirmed round count of over 50 000 rounds (saigas). All three are still accurate (2-3 MOA).

In Izhmash, the legend has it that many years ago a CEO was curious, what is the barrel life of AK 103 (7.62x39). They started testing and had to stop somewhere around 50 000 rounds, cause it was such a waste of money.

I thing a lot of full auto rental shooting ranges in the US have even higher round count.
good info
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Old 11-12-2017, 11:07 PM   #18
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Check out threads by battlefield Vegas. They’ve put millions of rounds through rifles on full auto. Their stamped aks seem to last 50,000-100,000 rounds before the receiver cracks.
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Old 11-12-2017, 11:58 PM   #19
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If you are worried about barrel wear on that MAK90,keep your eye on the Marketplace. I bought a spare NOS Type 56 barrel (not the Polytech populated barrel) for $120 a couple of years ago. You can also use a press and pin Type 3 barrel with the trunnion journal turned down.
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Old 11-13-2017, 11:20 AM   #20
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Quote:
Originally Posted by Ramey View Post
Anyone have knowledge about the average number of rounds that a barrel can take until it needs replacement?

Barrel in question is a Norinco Mak90

What are the FIRST signs of a barrel that is getting worn-out?
AK barrels never wear out, don't you know?
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Old 11-13-2017, 11:40 AM   #21
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Quote:
Originally Posted by Ramey View Post
Anyone have knowledge about the average number of rounds that a barrel can take until it needs replacement?
Very likely more than you will ever shoot. Stop worrying about it and just go enjoy your rifle. The money you will spend on ammo to wear one out can buy you ten replacements. Whole rifles, not barrels.
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Old 11-13-2017, 11:44 AM   #22
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Quote:
Originally Posted by Er98ah View Post
Check out threads by battlefield Vegas. They’ve put millions of rounds through rifles on full auto. Their stamped aks seem to last 50,000-100,000 rounds before the receiver cracks.
And the barrels still have good rifling!
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Old 11-13-2017, 11:58 AM   #23
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My curiosity is to how long a non-chrome lined barrel will last with a fair amount of use.
It will still likely out live me.

Bout to say, "f^ck it!" and buy a rifle without the chrome dome.
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Old 11-13-2017, 12:15 PM   #24
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I usually replace my barrels after each range trip.
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Old 11-13-2017, 01:26 PM   #25
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Quote:
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I usually replace my barrels after each range trip.
This, or when the bolt closes on the "go" gauge. No such thing as too safe!
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Old 11-13-2017, 02:43 PM   #26
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Quote:
Originally Posted by insider View Post
AK barrels never wear out, don't you know?

Unless its a butter soft ESS you mean...
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Old 11-13-2017, 02:50 PM   #27
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Quote:
Originally Posted by shajopma View Post
I think that half a barrel (keg) is 124 pints of beer so a full barrel would be 248 rounds.
I see what you did there, and I like it.
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Old 11-13-2017, 02:55 PM   #28
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Lets say you paid $750 for your AK......... NEW......

Should last at least 20,000 rounds......

So, 20,000 x .25(per round) = $5000.00

What I am saying here is...... If you have enough money to buy enough AMMO to actually shoot out a barrel, you wouldn't even care about barrel life....

You would just buy another rifle and keep on trucking..
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Old 11-13-2017, 03:30 PM   #29
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Uhhh bout tree fiddy now
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Old 11-13-2017, 05:06 PM   #30
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Quote:
Originally Posted by scottyhipockets View Post
This, or when the bolt closes on the "go" gauge. No such thing as too safe!
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Old 11-13-2017, 07:46 PM   #31
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Quote:
Originally Posted by pinakar View Post
Lets say you paid $750 for your AK......... NEW......

Should last at least 20,000 rounds......

So, 20,000 x .25(per round) = $5000.00

What I am saying here is...... If you have enough money to buy enough AMMO to actually shoot out a barrel, you wouldn't even care about barrel life....

You would just buy another rifle and keep on trucking..
Exactly. It's why I laugh when a guy with a cheap kit build insists on a chrome lined hammer forged mill spec barrel when the much che much cheaper button rifled US barrel will last for well over $2500 worth of ammo and still be more accurate.
I factor barrel life in to shooting cost on non collectable rifles.
Replace the barrel when it goes south.
On one of the collectable Variants I can understand wanting to not use the barrel up.

I have 8000 rounds on a non chromed non hammer forged 7.62x39 barrel and it still shoots good. It cost $65. If it hoes bad I'll replace it then. It will still be functional well after it looses initaly accuracy.

On a 223 button rifled barrel I got a accuracy drop off at about 7000 had rounds of use with not enough cleaning .

I can't give any numbers on a crime lined high round count barrel over 10,000 or so on one Rommy
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Old 11-13-2017, 09:43 PM   #32
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Originally Posted by Machak_Silver View Post
In Russia and Ukraine......

In Russia, barrel wears you out.
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Old 11-13-2017, 09:54 PM   #33
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Trunnion will probably crack before barrel wears out
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Old 11-13-2017, 10:08 PM   #34
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Quote:
Originally Posted by Stalker212 View Post
Take a bullet and see how far down in it can go at the end of the muzzle...



If it hits the case.. its gone too far.
I no longer believe in this.
After chopping 7" off a M72 barrel it bullet tested much better.



Before and after .... stub of same barrel on the right
I believe an over heated barrel can get expanded out at the end where its at it thinnest
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Old 11-13-2017, 10:36 PM   #35
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I no longer believe in this.
After chopping 7" off a M72 barrel it bullet tested much better.



Before and after .... stub of same barrel on the right
I believe an over heated barrel can get expanded out at the end where its at it thinnest
Ok I'm not a die hard believer in the bullet test or anything i didn't invent it. But if the end of your barrel has worn rifling and needs to to be cut down (in this case 7 inches). How did sticking a bullet in the muzzle still not show it was worn out regardless if you wanted to salvage the remaining barrel by cutting it down?
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