Rebores work very well!
I trust the process enough that I sent a brand new model 70 to Jesse for reboring to 338 federal. I ordered a nice swirly from McMillan and later added a wrap around front sight with a detachable peep.
It shoots like this.

[Linked Image from i.postimg.cc]

[Linked Image from i.postimg.cc]

And kills like this.

[Linked Image from i.postimg.cc]

[Linked Image from i.postimg.cc]

Its not always easy to do the right thing, But it is always the right thing to do.