09-04-2016, 07:39 PM
Just my opinion on barrel break-in. Barrels I use are bartlein, Kraiger, shilen and I am about to break in a JP grendel.
I believe that even in a premium hand lapped barrel you will find machine marks in the throat of the barrel. First few shots will usually smooth them out. But copper jacket material will be vaporized and deposited in the barrel.
My opinion is you need to remove that copper.
I follow shoot 1 and clean for 5 shots. I use boretech eliminator with jags and nylon brushes that will not give you a.false.positive for copper. Boretech eliminator will get the copper and give you that tell tail blue color in its presence but is not ammonia based.
After 5 and a short.soak if no blue which is usually the case the barrel break-in is done. If there is blue then repeat.
After that I will shoot some five shot groups cleaning.after each group just because that is what.I do.
I grew up cleaning after every hunting trip. Find that i feel guilty if I put.a.gun away dirty. Just.me.
I believe that even in a premium hand lapped barrel you will find machine marks in the throat of the barrel. First few shots will usually smooth them out. But copper jacket material will be vaporized and deposited in the barrel.
My opinion is you need to remove that copper.
I follow shoot 1 and clean for 5 shots. I use boretech eliminator with jags and nylon brushes that will not give you a.false.positive for copper. Boretech eliminator will get the copper and give you that tell tail blue color in its presence but is not ammonia based.
After 5 and a short.soak if no blue which is usually the case the barrel break-in is done. If there is blue then repeat.
After that I will shoot some five shot groups cleaning.after each group just because that is what.I do.
I grew up cleaning after every hunting trip. Find that i feel guilty if I put.a.gun away dirty. Just.me.