| Kareir---
This is just my opinion, I am not a gunsmith. I believe the fluting on the barrel does help cool. It gives the barrel more surface area which in turn equals more steel exposed to the air which we all know is what cools the barrel. Sound reasonable?
As for breaking in a new barrel, I have read several different methods, all of which include shooting, cleaning, shooting, cleaning so on in different numbers of shots between cleanings. I personally like to break them in and what I do I think is from either Nosler or Barnes reloading manual. I think the Idea is to smooth out any tooling marks from inside the bore without heating the barrel. Sam or Billy will probably have something for you on this, they seem to have a great deal of smarts on this kind of stuff. |