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AR15.COM
7/21/2016 11:35:07 PM EDT
I hear a lot of different ways to break in my .308.  What is the best way to break in a new rifle?
7/21/2016 11:38:26 PM EDT
[#1]
Other than shoot it look up Molon's break in thread.
7/22/2016 12:06:09 PM EDT
[#2]
I usually clean it after I get it, than bring some ammo, mags, eye pro, ad ear pro to a range.

Than I shoot it.

Molon did a post on barrel break in if you want to read more into it. It's got some good arguments on doing it and not doing it.
7/22/2016 8:39:30 PM EDT
[#3]
Take some oil with you, I used standard motor oil when I initially fired my LR-65 and LR-308 ... you will want the BCG dripping wet for the first 100 rounds.

From the DPMS forum:

Lubrication:
Regardless what you may have been told your NEW DPMS rifle needs oil to run!
We recommend "excessive lubrication" on the bolt carrier assembly during break in (100-150rnds) for proper function.

Oils that work are:
Any thick gun oil, brand not important (motor oil consistency)

Oils that do NOT work:
Rem-oil
dry lube
Teflon or moly based
aerosol sprays
grease

7/22/2016 9:37:22 PM EDT
[#4]
https://www.kriegerbarrels.com/faq#breakin
7/27/2016 6:40:40 AM EDT
[#5]
I dont know if it made a difference
But I followed JP's recommendations

I brought 100 rounds of range ammo. patches and hoppes. JB compound. and a JP bore guide

Took a few shots to set gas block settings. Then just shot 20 rounds.
Ran a wet patch. Then multiple patches of JB Polish Compound. Then a wet patch, followed by multiple dry patches till clean
patches were coming out blue, so I assume it was removing copper.

shot 20 more, did it again. and so on.

I did dial it in that day after 100 rounds of range ammo and cleaning.
Then after 300 rounds total, I gave it a full cleaning again with the JB compound.

Now I just run a wet patch and dry patches after range use(my normal cleaning)
7/27/2016 10:01:54 AM EDT
[#6]
Quote History


This and the very similar process from Lilja for their barrels (I have one and believe in the process) are for match grade barrels.  For such barrels it is of value and I do it.

For standard production barrels this is a waste of time and ammunition.