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View Full Version : New barrel break in



d.thomson
05-16-2007, 07:14 AM
A friend of mine has just bought a new Remington 7600 .308and has lost the breakin discription for new barrels. I have read some were that you shoot 1 or 2 shots and then a full cleaning,2 more shots full cleaning ect up to something like 20 shots. I was wondering if anyone could enlighten me as to the correct break in regament. Thanks in advance Dave T.

mhb
05-16-2007, 01:40 PM
for a Remington 7600 (or most any factory rifle) is a waste of time and ammunition. Make sure the barrel is clean and dry to begin with, shoot the rifle for zero with the ammunition you intend to hunt with, clean and lubricate it in the usual manner, and expect it to shoot as well as it is going to.
mhb - Mike

RugerFan
05-16-2007, 02:16 PM
Everyone has different ideas about barrel break-in. For new rifles, I prefer to do it. At the very least it should be easier to clean afterwards.

I personally follow Armalites version:

http://www.armalite.com/library/techNotes/tnote28.htm

There is also some good discussion here:

http://castboolits.gunloads.com/showthread.php?t=14771&highlight=break-in

http://castboolits.gunloads.com/showthread.php?t=7898&highlight=break-in

http://castboolits.gunloads.com/showthread.php?t=2714&highlight=break-in

waksupi
05-16-2007, 09:03 PM
If you have a stainless barrel, they should shoot as well as they are going to, right out of the box. It isn't unusual for us to get groups of under 1/2" for the first group out of a barrel.

d.thomson
05-17-2007, 07:54 AM
Thanks those are some great links. Dave T.

mhb
05-17-2007, 12:48 PM
Is useful for a rifle properly fitted and chambered using a custom barrel, and the purpose is to ameliorate the few remaining tool marks and/or burrs left from barrel manufacture and chambering. We recommend break-in for barrels we make and either fit in-house or sell to the custom trade - so do most custom barrel makers and gunsmiths who build first quality rifles.
However, having spent a great deal of time examining (including borescoping from end-to-end, a real -umm- eye-opener to the uninitiated), studying, working on and shooting factory-grade rifles, I'm firmly convinced that such a break-in regimen for the typical factory arm produces little or no effect to justify the expense in time and ammunition.
In the specific case cited: a Remington 7600 slide-action rifle, which must also be cleaned from the muzzle, I am certain that there is nothing worthwhile to be gained - these rifles will shoot into 2MOA with good ammunition, and no amount of wishful thinking, break-in or load development is likely to make it do much better.
Everyone is free to do what he thinks best, of course.
mhb - Mike