George Kelbly turned me on to colloidal graphite and I have bee using it on barrels ever since. Have several friends that now us it also.See Post 22, then work your way back up the conversation
http://forum.accurateshooter.com/threads/colloidal-graphite.3888537/page-2#post-36664110
done it this way for break in cleans fastest of all me riflesShoot once run a wet patch and few dry patches to clean it out. Shoot two shots, patch it the same way as the first shot. Shoot 5 and repeat step one. Shoot 10 shots now when you run a wet patch through it look for copper. If it's a good barrel you shouldn't see any copper fouling, let her rip you're good to go. I hardly ever scrub a barrel out, maybe every 500-600 rounds. Let the target tell you when something needs to be addressed.
Darrin
A little Hoppes oil on a patch to reduce friction otta do itI’m curious if anyone has done testing with any sort of prep work reguarding different lubricants in new barrels before breaking in. Not sure if it would help the speeding up process or copper fouling. Gun oil? Powder graphite? Or any other solvents.
a few thousand degrees F.Whatever you leave in the barrel is incinerated at the first shot. Think about it, what is the temperature of the explosion that pushes the bullet out of the barrel?