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#200945 - 08/03/19 11:22 PM How crucial is properly breaking in barrels?
Chance Weldon Administrator
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Registered: 09/20/13
Posts: 4265
Loc: Martin, Tennessee

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Despite having received both my MGM 327 and 460 Encore barrels a while ago, I haven't yet had many opportunities to shoot either of them. One thing that's been causing me to put them off has been the issue of breaking in the barrels. With the 460 barrel being one of my dream builds, one I plan on holding onto for a while, I especially want to make sure I do everything properly. MGM recommends a break-in procedure consisting of cleaning thoroughly between every shot for 15 rounds, then every 3-5 shots for every 50 rounds. That's going to be a bit time consuming.

What I've begun to wonder though is, is such a break in procedure necessary? The 460 isn't exactly a benchrest cartridge, and even on paper targets I'll probably only shoot it to 250, maybe 300 yards at most. I don't know, maybe I should just buckle up and get it done, even if it takes a while. What do you guys think?
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#200946 - 08/03/19 11:50 PM Re: How crucial is properly breaking in barrels? [Re: Chance Weldon]
Franchise
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Registered: 12/21/08
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Loc: Castalia, NC

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I don't really put a lot of weight into the "break in" process...I do think it's important to familiarize with your gun/bullet combination, I don't think counting shots is really all that important
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#200947 - 08/04/19 07:54 AM Re: How crucial is properly breaking in barrels? [Re: Franchise]
Mark Hampton
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Registered: 12/07/04
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Chance, If you ask 10 people this question -- you're likely to get 10 different answers. I've got MGM barrels -- and get exhausted just reading their break-in recommendation. Recommended procedures vary from different manufacturers. From a layman's perspective - barrel break-in doesn't make your barrel any more accurate -- just easier to clean down the road.

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#200949 - 08/04/19 09:05 AM Re: How crucial is properly breaking in barrels? [Re: Mark Hampton]
98Redline
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Registered: 10/10/10
Posts: 673
Loc: Eastern PA

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Wouldn?t running a few fire lapping rounds down the barrel accomplish the same thing?

At its core barrel break in, isn?t it just a form of the fire lapping process with an exceptionally fine grit?

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#200950 - 08/04/19 09:25 AM Re: How crucial is properly breaking in barrels? [Re: 98Redline]
wvhitman
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Registered: 12/04/05
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Loc: WV

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I've never done the shoot one-clean one routine. With all the guns I've done 13,000+ groundhogs and 2400+ deer with, they still shoot great. Only worn out one barrel ever-2200 rounds through my 6.5/.284XP.
I pace myself when sighting in. Shoot slow to keep the barrel cool. I only oil the barrel after the first sight in session, they dry patch only rest of hunting year. Oil changes POA each time requiring another sight in. At end of year every year gun gets copper cleaned and bore curing with several of the products out there.
Worked last 44 years. Too old to change.

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#200953 - 08/04/19 02:43 PM Re: How crucial is properly breaking in barrels? [Re: Mark Hampton]
Zee
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Registered: 03/23/14
Posts: 2673

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 Originally Posted By: Mark Hampton
Chance, If you ask 10 people this question -- you're likely to get 10 different answers. I've got MGM barrels -- and get exhausted just reading their break-in recommendation. Recommended procedures vary from different manufacturers. From a layman's perspective - barrel break-in doesn't make your barrel any more accurate -- just easier to clean down the road.


This.

Since every barrel is an entity unto itself, there is no way to prove that a barrel break-in procedure has any effect on resulting accuracy. Once you shoot it either way, there is no way to return it to brand new and try another way to see if there is a difference. So I. Reality, it?s all speculation. A feel good that manufactures give customers because they think they need one. A placebo.

Drink the Koolaid if you need/want.

😎
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#200955 - 08/04/19 04:42 PM Re: How crucial is properly breaking in barrels? [Re: Zee]
KYODE
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Registered: 01/18/04
Posts: 3058
Loc: Northeast Ky.

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Not something i worry about. Clean before first firing.....after a range session.....or when i take a notion or get time. Lol

Id guess most just give out a procedure just because some people demand one or want to ask all the time. But.....thats just my thinking.
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#200958 - 08/04/19 06:16 PM Re: How crucial is properly breaking in barrels? [Re: KYODE]
H2OBUG
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Registered: 02/13/08
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Loc: Louisiana

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I think it makes a big difference on cheap barrels. On good quality barrels I don?t think you get a lot they are pretty smooth already.
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#200962 - 08/04/19 08:12 PM Re: How crucial is properly breaking in barrels? [Re: H2OBUG]
Pa. Mike
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Registered: 07/10/09
Posts: 69
Loc: South Central Pa.

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Most premium barrels are fairly smooth inside to begin with but as I understand it you are really smoothing out the throat area where the reamer has made minute circular marks. They claim this is where the fouling process begins. I break in every barrel except revolvers with shoot one shot and clean for the first 10 shots then after 3 shots for the next 9. I do this at 25 yards and get my scope on paper at the same time. Does it make them more accurate? Not sure but the extra effort up front makes for much less cleaning effort for life of the barrel in my humble opinion. But again its a personal choice and the success the wvhitman has achieved cannot be argued with.

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#200975 - 08/05/19 01:21 PM Re: How crucial is properly breaking in barrels? [Re: Pa. Mike]
karl
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Registered: 01/12/15
Posts: 655
Loc: Minnesota

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Last week, I received a new MGM barrel in 45-70 that I had out to the range Saturday. Their instructions were actually pretty short (or I glossed over the long boring parts). I cleaned, shot 2, cleaned, shot 2 and cleaned again and shot ~40. At the end I was getting 3 shots touching @ 100 yards with loads that it liked. The throat had been honed after reaming due to a miss communication on my end (note to self, don't send in neck sized dummy rounds for a new barrel) but i was very happy with the performance.

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