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Rampon | 01-05-2009 12:00 AM
Barrel Break-In Lots of opinions regarding barrel break-in. What are your thoughts/opinions? Anyone ever use the electric bore cleaner? Found the below article on a Google search very interesting, especially considering that my very experienced Dealer/Smith recommended putting 200 rapid-fire rounds down range then using an oil to seal pores in metal. He said the barrel would get almost "white hot", but would be a good break-in procedure (7.62x51 in M1A) Separate considerations for chrome lined barrels (ie. AR's) http://www.snipercountry.com/Article...el_BreakIn.asp

exporter | 01-05-2009 12:08 AM
Re: Barrel Break-In Please dont follow "rapid fire" break-in advice as high heat and pressure cause throat erosion. Just clean before firing, then clean after few rounds and repeat or whatever manufacturer suggests. I'm not too keen on the rigorous barrel break in fads, but with proper cleaning equipment and procedure will not harm rifle.

SilverCity | 01-05-2009 12:26 AM
Re: Barrel Break-In I had a custom rifle built on a Remington 700 action with a premium match-grade Shilen barrel. The manufacturers break-in instructions were: shoot ten, clean, shoot ten, clean...done. I tend to agree with Gale McMillan...just shoot and clean as you would regularly. For me that would be about every 20-25 shots--if I am shooting for accuracy. And do not scrub the bore excessively. Let the solvent do the work. Run a wet patch slowly down the tube, leave it wet for several minutes, patch it dry. Repeat until patch is clean.

Rampon | 01-05-2009 12:54 AM
Re: Barrel Break-In Thanks Folks Any suggestions re. solvents/cleaners Kinda surprised about his info on nylon cleaning brushes...but, yeah, it does make sense. Don't do it. Here's a thread I found over on an SKS board re. Electronic Cleaning. I think this might be helpful to those purchasing some of the older surplus rifles.I think I've seen info. that implies that there may be commercial electronic cleaners. I've never seen them though. http://www.sksboards.com/smf/index.php?topic=28388.0

SilverCity | 01-05-2009 01:37 AM
Re: Barrel Break-In I don't use ammonia based solvents as I think they are too harsh...usually just Hoppe's Bench Rest Nitro solvent or even plain old "No.9"...

Zusn | 01-05-2009 02:23 AM
Re: Barrel Break-In Quote:
Originally Posted by Rampon (Post 1495453) Lots of opinions regarding barrel break-in. What are your thoughts/opinions? Anyone ever use the electric bore cleaner? Found the below article on a Google search very interesting, especially considering that my very experienced Dealer/Smith recommended putting 200 rapid-fire rounds down range then using an oil to seal pores in metal. He said the barrel would get almost "white hot", but would be a good break-in procedure (7.62x51 in M1A) Separate considerations for chrome lined barrels (ie. AR's) http://www.snipercountry.com/Article...el_BreakIn.asp
I don't have that kind of money to spray away 200 rounds like that! I guess I'll never break it in right.

EE_ | 01-05-2009 03:23 AM
Re: Barrel Break-In Quote:
Originally Posted by Rampon (Post 1495500) Thanks Folks Any suggestions re. solvents/cleaners Kinda surprised about his info on nylon cleaning brushes...but, yeah, it does make sense. Don't do it. Here's a thread I found over on an SKS board re. Electronic Cleaning. I think this might be helpful to those purchasing some of the older surplus rifles.I think I've seen info. that implies that there may be commercial electronic cleaners. I've never seen them though. http://www.sksboards.com/smf/index.php?topic=28388.0
I'm old fashioned, I only use Hopps #9 bore cleaner, Hopps .50 cal. patches, a brass bore brush (only when needed) and Break-Free CLP. An aerosol gun scrubber when needed.

StrawMan=Corporation | 01-05-2009 03:27 AM
Re: Barrel Break-In I use a device called a boresnake. I think Wally world carries them. http://www.google.com/search?hl=en&r...+snake&spell=1

renegade_01 | 01-05-2009 09:24 AM
Re: Barrel Break-In typically if you shoot 10 clean, shoot 10 clean that should be good. Just be sure to use a good brush and and try to feed from throat end instead of the muzzle end. A boresnake makes the break-in process EASY.

The Argent Dragon | 01-05-2009 09:28 AM
Re: Barrel Break-In Quote:
Originally Posted by exporter (Post 1495460) Please dont follow "rapid fire" break-in advice as high heat and pressure cause throat erosion. Just clean before firing, then clean after few rounds and repeat or whatever manufacturer suggests. I'm not too keen on the rigorous barrel break in fads, but with proper cleaning equipment and procedure will not harm rifle.
DITTO......you want to 'season' the metal which means lots of SLOW heating and cooling for at least 1,000 rounds. Rapid Fire causes more 'Heat' and forces the metal to expand quickly. While on and old gun with 1,000's of rounds through it won't hurt - a new one will be strained. Sure, it might not hurt.........but there's almost NO benefit from doing this on purpose. JMVHO, -AD

electric-amish | 01-05-2009 09:35 AM
Re: Barrel Break-In I would like to get to the bottom of the Break in talk. How can cleaning after 10 shots 2 times help increase long term accuracy? I want to PooPoo this as somebodys urbanmyth but I'll admit I do not know. E-A

platinumdude | 01-05-2009 09:38 AM
Re: Barrel Break-In For a DSArms rifle, here is there suggestion http://www.dsarms.com/brebarrel.asp

SilverCity | 01-05-2009 10:09 AM
Re: Barrel Break-In Quote:
Originally Posted by electric-amish (Post 1495843) I would like to get to the bottom of the Break in talk. How can cleaning after 10 shots 2 times help increase long term accuracy? I want to PooPoo this as somebodys urbanmyth but I'll admit I do not know. E-A
The break-in procedures were included with my new barrel from Shilen. That was 10 years ago. My question, who ever said barrels needed to be broken in at all? More internet urban myth? Quality barrels are already hand-lapped for smoothness from the barrel maker. Why repeat the process? Here is the latest from Shilen's website: How should I break-in my new Shilen barrel? Break-in procedures are as diverse as cleaning techniques. Shilen, Inc. introduced a break-in procedure mostly because customers seemed to think that we should have one. By and large, we don't think breaking-in a new barrel is a big deal. All our stainless steel barrels have been hand lapped as part of their production, as well as any chrome moly barrel we install. Hand lapping a barrel polishes the interior of the barrel and eliminates sharp edges or burrs that could cause jacket deformity. This, in fact, is what you are doing when you break-in a new barrel through firing and cleaning. Here is our standard recommendation: Clean after each shot for the first 5 shots. The remainder of the break-in is to clean every 5 shots for the next 50 shots. During this time, don't just shoot bullets down the barrel during this 50 shot procedure. This is a great time to begin load development. Zero the scope over the first 5 shots, and start shooting for accuracy with 5-shot groups for the next 50 shots. Same thing applies to fire forming cases for improved or wildcat cartridges. Just firing rounds down a barrel to form brass without any regard to their accuracy is a mistake. It is a waste of time and barrel life. http://www.shilen.com/faq.html#question10 Let me add: always use a BORE GUIDE when cleaning from the breech.

Uncle Mike | 01-05-2009 10:52 AM
It's all non-sense. Hi,Ive tried it both ways and have seen no difference.Try this link from 1997, www.yarchive.net/gun/barrel/break_in.html I know even the big producers recommend it but I have found it unproductive. If it works for you God Bless, Regards,Mike

The Argent Dragon | 01-05-2009 11:00 AM
Re: It's all non-sense. Quote:
Originally Posted by Uncle Mike (Post 1495919) Hi,Ive tried it both ways and have seen no difference.
Yep, this confirms what I was thinking on metallurgy. The chrome lined barrels don't need a break-in but I wasn't sure about the others. However, think of this - most modern rifles (99%) have much harder steel than a century ago. The Rockwell hardness of modern barrels is at least twice as strong as the early models made around 1900. And keep in mind that we use mostly non-corrosive primers which trumps the 'pitting' theory of sealing the barrel, etc. Perhaps a Break-In is required for 100-yr old rifles (if New) but we'll never get that opportunity (outside of finding unissued pieces in an Armory). :wink:

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