AR10 .308 Break-in process

ChitownCopper

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Oct 16, 2019
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You can burn ur gas port and it can move. Also maybe a little faster and easier to clean. I know when I spend 800 on a tube I want to get every once of accuracy out of it
 

Darkside-Six

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Break in is a waste of time. Clean it when you first get it AMD then go to town. Don’t mess with it until the Accuracy opens up a bit or if it gets rain/dirty.

You know how many Fudd’s I’ve seen ruin their barrels by over cleaning? 🤦‍♂️
 

gopherslayer

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You can burn ur gas port and it can move. Also maybe a little faster and easier to clean. I know when I spend 800 on a tube I want to get every once of accuracy out of it
Of course you’re going to burn your gas port. There’s hot gas going down the barrel. As far as moving, hows that going to happen? It’s a hole drilled in steel. Not like it’s going to get pushed further down the barrel and take up shop there.
 
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TacticalDillhole

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Wether I buy a Bartlein, Kreiger, or Brux I prefer to use their break in method. Seams to me the manufacturer would know better than a bunch of internet gurus.
They also sell barrels for a living, so of course they want you to use a bunch of solvents and fire unnecessary rounds. That way you buy a new barrrel sooner.
 

gopherslayer

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I don’t think some of these guys have heard LLs opinion on it or maybe it changed. Whatever, free country (sort of) I’ll do it my way.
 

Stavey

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They also sell barrels for a living, so of course they want you to use a bunch of solvents and fire unnecessary rounds. That way you buy a new barrrel sooner.
I’m shooting the rifle anyway so no unnecessary rounds. As for “a bunch of solvents” nothing but hoppes 9. The companies I listed have a reputation as the being top tier in terms of accuracy . I’m guessing their reputation means something to them . It literally takes a few minutes and I’m shooting anyway so no reason not to.
 

redneckbmxer24

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Push a couple patches soaked in denatured alcohol down the bore to remove any residual oil and junk from manufacturing followed by some dry patches and then go shoot it.

Barrel break in is stupid. A barrel gets broken in by bullets passing through it, not patches and brushes so the shoot one clean one method really isn't going to do anything. It also takes way longer than the typical 10-20rd's of most break in methods for a barrel to be fully broken in. With that said it's pretty common for a barrel to foul a little at first especially factory grade stuff, when/if accuracy opens up clean and repeat. I'll typically clean after the first range session of 20-50 rounds and then again around 100 and by then it's usually pretty well smoothed out if it's a top tier barrel. I usually won't clean again until 500 or so unless it starts acting weird when the barrel speeds up which happens sometimes and then I'll clean to eliminate that variable before revisiting the load/ammo.

I don't go overboard cleaning at the first intervals either. A couple wet patches of bore tech eliminator, wait 5 mins, repeat, wait 5 mins, patch dry, swab the chamber and it's good to go. No need for a brush to come out until the 500 round cleaning and even then its just a few passes with a nylon brush.
 
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Stavey

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Push a couple patches soaked in denatured alcohol down the bore to remove any residual oil and junk from manufacturing followed by some dry patches and then go shoot it.

Barrel break in is stupid. A barrel gets broken in by bullets passing through it, not patches and brushes so the shoot one clean one method really isn't going to do anything. It also takes way longer than the typical 10-20rd's of most break in methods for a barrel to be fully broken in. With that said it's pretty common for a barrel to foul a little at first especially factory grade stuff, when/if accuracy opens up clean and repeat. I'll typically clean after the first range session of 20-50 rounds and then again around 100 and by then it's usually pretty well smoothed out if it's a top tier barrel. I usually won't clean again until 500 or so unless it starts acting weird when the barrel speeds up which happens sometimes and then I'll clean to eliminate that variable before revisiting the load/ammo.

I don't go overboard cleaning at the first intervals either. A couple wet patches of bore tech eliminator, wait 5 mins, repeat, wait 5 mins, patch dry, swab the chamber and it's good to go. No need for a brush to come out until the 500 round cleaning and even then its just a few passes with a nylon brush.
So you honestly think that you know more about the barrels and break in than their actual manufacturer ?
 

Strykervet

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It doesn't hurt and the high end mfg.'s usually have some sort of break-in procedure. Lilja barrels come with one I know, so do many others. I suppose with CHF chrome lined barrels it's probably not as big of a deal though.

It's usually something along the lines of 100rds, clean after each round for the first five, then after each five for so many rounds, ten after that, etc. Not a full clean, just a couple patches usually, some say to use a brush for those first few. I think the idea is to fill in the imperfections in a new barrel more uniformly?

I'd call the mfg. and see what they say.
 
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Steel head

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So you honestly think that you know more about the barrels and break in than their actual manufacturer ?
you honestly don’t think the manufacturers don’t provide it to satisfy those who want to fiddle around with their new toy instead of going out to shoot it?
 

whatsupdoc

Gunny Sergeant
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Where is the BEEF!

Someone show me the testing results provided by any manufacturer that breaking in a barrel provides some type of accuracy or longevity benefit.
 
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ChitownCopper

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Oct 16, 2019
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Of course you’re going to burn your gas port. There’s hot gas going down the barrel. As far as moving, hows that going to happen? It’s a hole drilled in steel. Not like it’s going to get pushed further down the barrel and take up shop there.
It burns up and creates a small void look it up
 

gopherslayer

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Erosion of the port or erosion of the throat, Both will effect accuracy. Rate of fire for both will have more impact on erosion than barrel break in. The minutiae on here is mind boggling sometimes. Don’t buy a borescope or you’ll be rebarreling every 500 rounds.
 
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8pointer

Major Award Winner
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Sounds like you’re both talking about port erosion but, based on the way it’s described by @ChitownCopper, I’m imagining the hole literally and quite magically moving from one place to another along the length of the barrel, haha.


Right or wrong, it’s Good stuff
I know full well what he's insinuating I was merely putting the onus on him to provide evidence of his fantastical claims vs having us 'look it up' that an elaborate break in is going to keep gas port erosion from happening. Last year I went over 5k rounds suppressed on my fav gasser of all time still a 1" gun at worst with hunting ammo all I did was wipe the packing grease off the BCG, add some CLP to contact points, bore snake it and rack the bolt. The day I got it went to ranch zeroed thermal popped off about 200 rounds on steel and went out and rolled a hog: break in complete. I'm sure I'd be shocked at how my barrel *looks* if I cared to push a bore scope through it, but I more interested in how the target looks downrange post squeeze.
 
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