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Old 12-15-2010, 01:16   #1
Camu Mahubah
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Barrel Break-In

Finally got my AR built and in the next week or two I will be heading to the range and finding "zero".

Do I need to clean the barrel after every shot for the first 50 rounds? I've never owned a brand new rifle and I wanting to take decent care of this gun and maintain it well, as I have a bit of money and time in it. I want the barrel to be accurate.

How do you guys break-in a new barrel? And yes I did a search. Nothing relevant.

Thanks
Camu
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Old 12-15-2010, 04:01   #2
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What brand rifle?
What barrel?

I normally follow break in procedures from Keriger,

http://www.kriegerbarrels.com/Break_...246-wp2558.htm
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Old 12-15-2010, 04:04   #3
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Lube it, shoot it, clean it if you feel like it when you're done. Repeat.
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Old 12-15-2010, 07:30   #4
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Unless you are talking about a 10k high-power competition rifle with a hand made barrel, no break-in is necessary. And even with them high-dollar rifles, the vale of a "break-in" has yet to be concretely proven.
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Old 12-15-2010, 08:40   #5
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Quote:
Originally Posted by Camu Mahubah View Post
Finally got my AR built and in the next week or two I will be heading to the range and finding "zero".

Do I need to clean the barrel after every shot for the first 50 rounds? I've never owned a brand new rifle and I wanting to take decent care of this gun and maintain it well, as I have a bit of money and time in it. I want the barrel to be accurate.

How do you guys break-in a new barrel? And yes I did a search. Nothing relevant.

Thanks
Camu
Camu,

If your barrel is not chrome bored then I'd give it a good cleaning with a good solvent like Birchwood Casey's "Bore Scrubber" or perhaps "Shooters Choice". I usually soak the bore with solvent to get any possible fouling (green) our of the pores and scrub it well with a bronze/copper brush. I usually like to use a 22 pistol brush.

Other than my statement you can shoot all you want on a chrome bore.

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Old 12-15-2010, 09:06   #6
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I have heard that if you soak the barrel in Copperhead snake oil over night on a full moon then swab it with liquid velocity after each round for the first 100 it will guaranteed increase accuracy by .5 MOA.

Quote:
Originally Posted by NeverMore1701 View Post
Lube it, shoot it, clean it if you feel like it when you're done. Repeat.
But seriously, this. There's no point "breaking in" an AR barrel. Even among the benchrest crowd it's debated. If you want to find out for yourself, go shoot the crap out of it for 100 rounds or so, super clean it with copper solvent, do a break in of some sort, then repeat. Report any change in accuracy back here.
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Old 12-15-2010, 10:11   #7
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Quote:
Originally Posted by NeverMore1701 View Post
Lube it, shoot it, clean it if you feel like it when you're done. Repeat.
This, because the truth about barrel break-in is that it's BS. Please enjoy this video.

http://www.youtube.com/watch?v=TRRah...eature=recentf
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Old 12-15-2010, 10:45   #8
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Shoot the heck out of it.
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Old 12-15-2010, 19:39   #9
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Quote:
Originally Posted by glock22357 View Post
Unless you are talking about a 10k high-power competition rifle with a hand made barrel, no break-in is necessary. And even with them high-dollar rifles, the vale of a "break-in" has yet to be concretely proven.
An expensive custom hand lapped barrel shouldn't need any breaking in either. That's what the hand lapping is for.
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Old 12-16-2010, 08:56   #10
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other than MAYBE in benchrest or 1000 yard target guns barrel break in is nonsense- just shoot it
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Old 12-16-2010, 09:34   #11
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Originally Posted by vafish View Post
An expensive custom hand lapped barrel shouldn't need any breaking in either. That's what the hand lapping is for.
Or you can "fire-lap" it...in other words, shoot the heck out of it!
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Old 12-16-2010, 09:44   #12
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Quote:
Originally Posted by faawrenchbndr View Post
What brand rifle?
What barrel?

I normally follow break in procedures from Keriger,

http://www.kriegerbarrels.com/Break_...246-wp2558.htm
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Old 12-16-2010, 09:59   #13
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From what I've read, barrel break-in is just a marketing ploy. What you are actually doing is shortening the life of the barrel with the whole "break-in" process, which leads to more barrels sold and profit for the manufacturer, with no significant accuracy or performance gains for the shooter, unless wasting time and money is a gain to you.
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Old 12-16-2010, 12:06   #14
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Quote:
Originally Posted by got_metal View Post
From what I've read, barrel break-in is just a marketing ploy. What you are actually doing is shortening the life of the barrel with the whole "break-in" process, which leads to more barrels sold and profit for the manufacturer, with no significant accuracy or performance gains for the shooter, unless wasting time and money is a gain to you.
So,......as per Kreiger's recommendations, 13 rounds fired to "break in the barrel
Is undue wear and tear and will shorten the life of the barrel?
Are you seriously saying that? Are you kidding me?!
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Old 12-16-2010, 12:11   #15
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Quote:
Originally Posted by glock22357 View Post
Unless you are talking about a 10k high-power competition rifle with a hand made barrel, no break-in is necessary. And even with them high-dollar rifles, the vale of a "break-in" has yet to be concretely proven.
That's right!

Unless it's a precision target rifle, which most AR's are not, just shoot it.
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Old 12-16-2010, 14:27   #16
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Quote:
Originally Posted by faawrenchbndr View Post
So,......as per Kreiger's recommendations, 13 rounds fired to "break in the barrel
Is undue wear and tear and will shorten the life of the barrel?
Are you seriously saying that? Are you kidding me?!
http://www.snipercountry.com/Article...el_BreakIn.asp
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Old 12-16-2010, 17:01   #17
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Quote:
Originally Posted by got_metal View Post
http://www.kriegerbarrels.com/Break_...246-wp2558.htm

Last edited by faawrenchbndr; 12-16-2010 at 17:01..
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Old 12-16-2010, 17:24   #18
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Most barrels are lapped in from the factory, so the break-in is not needed anyways. So they say. On the other hand, what can it hurt to run a patch through he barrel after the first 10 or or so 2 round shots. It's only your time, it sounds like a good idea or insurance if you plan on keeping the rifle for a while, again what does it hurt to do it?
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Old 12-16-2010, 17:25   #19
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Quote:
Originally Posted by faawrenchbndr View Post
There seems to be a lot of opinions about the whole break-in thing, different ways of doing so on different barrels, etc. Some people swear it improves accuracy and ease of cleaning, some people say BS. If it makes you feel better about your gun, then do it. I feel it is unneccesary and don't bother. To each their own.
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Old 12-16-2010, 17:30   #20
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As I stated,.......chrome lined barrel not needed.
Stainless,......13 rounds sure make a heJJ of a difference.


Just my opinion,.......thanks for letting me know.
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Old 12-16-2010, 17:40   #21
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Quote:
Originally Posted by Tucson_1 View Post
This, because the truth about barrel break-in is that it's BS. Please enjoy this video.

http://www.youtube.com/watch?v=TRRah...eature=recentf
That looks an awful lot like how I break in my ARs....
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Old 12-16-2010, 18:03   #22
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OP:

Colt LE 6920 16" Chrome Lined Barrel

MK12 MOD1 18" Stainless Barrel (Built by High Caliber Sales/Same specs as Crane NWS)

I followed break in guidelines for the 6920. The guide was posted here on GT but I cannot remember by who. It was much like the Krieger link posted.

For the MK18, I followed the break in period recommended by the builder of the rifle. His recommendation…Just shoot the thing and clean it when you're done.

I cannot find any noticeable difference between the 2 above. I know it isn't an apples to apples comparison. I figured there would have been a difference because of the design of the barrels.

I have 2 other 6920 rifles that did not get a barrel break in and they run just as accurate as the broken in barrel of the 6920 listed above.
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Old 12-19-2010, 10:53   #23
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I am curious to know what people think is happening inside the barrel during these break-in procedures that did not happen during barrel finishing.
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Old 12-19-2010, 18:21   #24
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Quote:
Originally Posted by faawrenchbndr View Post
So,......as per Kreiger's recommendations, 13 rounds fired to "break in the barrel Is undue wear and tear and will shorten the life of the barrel? Are you seriously saying that? Are you kidding me?!
He is referencing the posts of Gale McMillan. McMillan was a barrel maker and posted about it at TFL prior to his death.

You can google "Gale McMillan barrel break in" to see the posts.

The thing about what McMillan said is that he is comparing apples to oranges. McMillan was advising against using a bore scrubber like JB Bore Paste (?) that is an abrasive. I agree with McMillan. Using an abrasive is not a good idea on a new barrel, if ever.

What most of us are referring to with "barrel beak in" has nothing to do with bore paste, just using regular solvent and patches to prevent copper fouling buildup and getting a good even burnish of the fresh metal. If you consider how a little nick on the crown can effect accuracy, it's not a stretch to think uneven wear in the barrel could to.

I break in my barrels. Does it help? I don't know. But I do know I can never go back and start over, and there are a number of manufacturers who recommend some type of break in procedure. But the people who don't break in will always fall back on McMillan, and reading his actual posts on the subject, you can tell he has a completely different procedure in mind.

As for an AR, if it has a chrome lined barrel, I don't know if it is necessary, but it won't hurt. Like any barrel, all it costs is a little time, solvent, and patches. And there are no mulligans.
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Old 12-19-2010, 18:35   #25
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Rooster'

I've read about McMillan as well.......that's why I posted info from Kreiger.
I've followed that info and have always had barrels that do not copper foul,
and that are accurate enough for me.
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