New barrel break in?

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New barrel break in?

Post by orpheoet on 2/16/2017, 8:11 am

I just received a Clark 6.5" barrel for my M41. I'm taking it to the range today and just curious how long does it take for a new barrel to become consistent? I could be overthinking this but I've heard and read all sorts of notions about seasoning the barrel and such. So far I'm very impressed by the appearance of it. The rifling is much sharper than the S&W barrel on it so I think I made a good decision and the balance is very nice.
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Re: New barrel break in?

Post by Chris Miceli on 2/16/2017, 10:12 am

It takes 12.3 shots to season the barrel
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Re: New barrel break in?

Post by LenV on 2/16/2017, 10:14 am

Chris Miceli wrote:It takes 12.3 shots to season the barrel
LOL   I was thinking 6.6.
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Re: New barrel break in?

Post by Tim:H11 on 2/16/2017, 10:32 am

Crisco and an oven...? 

Really I think you can just shoot it and it'll be ok.
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Re: New barrel break in?

Post by JKR on 2/16/2017, 10:43 am

Don't forget, you can send it to Rome to have the Pope bless it, but only if you're Catholic!

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Re: New barrel break in?

Post by rich.tullo on 2/16/2017, 10:56 am

2 to 10 shots depends on the ammo is what it takes for the groups to shrink after I clean mine. 

I send mine to Mecca where they shove the barrel up a goats ass, dance around the Koran and then the Iman wipes is clean with his beard while chanting Aloha Snack Bar. It takes some time to get it back but those crazy bastards do it for free.
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Re: New barrel break in?

Post by joy2shoot on 2/16/2017, 11:19 am

orpheoet, I also own a Clark barrel.  I don't remember a 'break-in' period but that may be because I was a Marksman/Sharpshooter at the time.  However, like a previous commentor, whenever I clean the gun, it won't cycle correctly until I put 5-10 rounds through it.

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Re: New barrel break in?

Post by Jack H on 2/16/2017, 11:35 am

Chris Miceli wrote:It takes 12.3 shots to season the barrel

But only at sea level.  High elevation....takes longer.  But that is because it's colder.
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Re: New barrel break in?

Post by Chris Miceli on 2/16/2017, 1:15 pm

Jack H wrote:
Chris Miceli wrote:It takes 12.3 shots to season the barrel

But only at sea level.  High elevation....takes longer.  But that is because it's colder.
Ahh yes, also something with yeast and germs
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Re: New barrel break in?

Post by Jack H on 2/16/2017, 2:06 pm

I recall one barrel provider saying something like
Clean well
Shoot one round and clean, repeat 5 times
Shoot 2 and clean, 5x
Shoot 3 and clean, 5x
etc. for 50-100 rounds
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Re: New barrel break in?

Post by rich.tullo on 2/16/2017, 2:14 pm

Hammerli says clean no more than once every 1000 rounds.
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Re: New barrel break in?

Post by zanemoseley on 2/16/2017, 2:30 pm

Jack H wrote:I recall one barrel provider saying something like
Clean well
Shoot one round and clean, repeat 5 times
Shoot 2 and clean, 5x
Shoot 3 and clean, 5x
etc. for 50-100 rounds
I remember something like that but thought it was more for high power rifles. And also thought it was just for barrels that weren't hand lapped. You're basically performing the lapping process with bullets and a cleaning rod. I just shoot the damn things and clean every trip.

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Re: New barrel break in?

Post by jglenn21 on 2/16/2017, 4:29 pm

all kinds of rifle break in procedures out there... only thing it really does is smooth our the chamber throat which can have some sharp edges depending on how the chamber was reamed and finished.
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Re: New barrel break in?

Post by DeweyHales on 2/16/2017, 9:29 pm

No one has ever statistically proven that break in does anything except accelerate the wearing out of a barrel. 

As noted above, a few fouling shots may be needed to settle. Just shoot it. It'll be fine.
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