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Breaking in new rifle

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Breaking in new rifle

Old 02-17-2003, 08:39 AM
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Join Date: Feb 2003
Location: Salem OR USA
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Default Breaking in new rifle

I recently bought a Winchester Model 70 300 Ultra Mag and I was wondering what is the best way to break it in. The last rifle I bought was 20 years ago when I was 18 and not knowing any better I just took it out of the box and started shooting[:@] although it has done me quit well I want to break my new one in properly.

Also what brand of solvent and gun oil would you suggest I be using?

Thanks for Your Help
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Old 02-17-2003, 09:33 AM
Nontypical Buck
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Default RE: Breaking in new rifle

You' ll get a variety of opinions on this subject. I personally clean after every three shots up to around 12 rds. , then after every five rds for the next 20 or so. after that I' ll run the bore snake through every 10 - 15 rds at the range and thorough cleaning after every range session, which will usually last around 45 -50 rds for each rifle with me.
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Old 02-17-2003, 07:43 PM
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Default RE: Breaking in new rifle

7 X 7

Most importantly is to not shoot it too far until it' s broken in. Limit your shots to about 50 yards and work your way out to longer distances over the next 50 rounds or so and you should be alright.


Seriously, I agree with Thunderchicken about breaking it in cleanly. I like to smear a film of moly on the bullets, too. Can' t really prove if the moly (grease) really does anything or not, maybe I just like the additional smoke. Oh well.

Have fun with it, treat it right and it should last a lifetime.
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Old 02-18-2003, 09:40 PM
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Default RE: Breaking in new rifle

I am not really sure of the best way, I can only tell you what works for me. With my magnums I like to scrub the barrel after every shot for the first five shots, then after it is this I will shot two times and scrub for the next six shots, after that I will shoot a three shot group and scrub, and repeat two more times. This finishes my first box of shells, and with my big guns off a bench it will usually finish my first day at the range. This is by no means an elaborate break in as preferred by many target shooters, but my magnums aren' t competition guns and I only ask that they consistently shoot sub-moa groups, not 1/4 moa groups, if I needed that accuracy I' d probably break them in a little longer. The only thing a break in is doing is to try to smooth the bore a little to improve accuracy, and I have found that my technique is a good comprimise between just going and shooting the gun (usually doesn' t give the best accuracy), and a benchrest break-in (may give the best accuracy but it takes FOREVER).

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Old 02-19-2003, 05:16 AM
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Location: VA USA
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Default RE: Breaking in new rifle

I' ve read " experts" tell about various break-in procedures, but I' ve also read " experts" that swear breakin procedures are just wearing out your barrel.

I' ve tried various methods over the years, but I no longer use any break-in methods. I think in general most folks end up doing more damage than good, especially with cleaning rods. I' ve also heard some real horror stories about fire lapping methods.

I' m not going to argue with anyone either way. I' m just giving you my opinion.
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Old 02-19-2003, 08:44 AM
Nontypical Buck
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Location: Olive Branch MS USA
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Default RE: Breaking in new rifle

Based on having done this break-in routine to several rifles, I now think it' s just a waste of my time. Instead, I simply take a new rifle, clean the barrel of any residue left at the factory and then go shoot it. I give it a thorough cleaning after about every 20 rounds.

I' d like someone to prove that this break-in nonsense results in a more accurate rifle. It hasn' t for me. The two most accurate rifles I own were not " broken in" . The late Gale McMillan, who made match barrels for a living, thought it was nonsense. The guys at Shilen think it' s no big deal either.

If someone wants to do it, that' s fine with me. However, if they think it' s going to result in a rifle that' s more accurate, they' re fooling themselves. It will reduce copper fouling quicker, but that' s about it.
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Old 02-19-2003, 10:09 PM
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Default RE: Breaking in new rifle

I think breaking in barrels works. Morrison Precision Company probably makes the best barrels in the world, and they recomend breaking in their barrels. Good luck.
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Old 02-20-2003, 01:03 AM
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Default RE: Breaking in new rifle

With a premium barrel, it should have been hand lapped and smooth already. With a factory barrel, having soft copper jacketed bullets run down a much harder chromemoly or SS barrel simply isn' t going to wear the rough spots down enough in 5 or 50 shots to make a difference. Keeping the barrel clean at least will give you better accuracy though. Running a cleaning rod down your barrel every 5 shots, if done incorrectly will also hasten the barrel' s demise.
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Old 02-20-2003, 09:59 PM
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Default RE: Breaking in new rifle

Just as an add on to my reply, and because others have brought it up, do yourself a favor use a bore guide whenever you run a cleaning rod down your barrel.

Break in for me is kinda odd, the only time I really think it helps is with a barrel that shoots pretty good, but fouls quickly and then I get a flyer, I' ve never noticed that it helped my good shooters any though.

As for Solvent, any good copper fouling formula will do, I have been using Birchwood Casey' s " Bore Scrubber" and it seems to be doing fine.

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