Re: Rebarreling Savage 12 -.22-250?
I'll throw the plain 284 Winchester in the mix, and second the 308. But the 260 is going to be a bit better at distance due to the higher BC bullets available for the caliber and the speeds you can push them. That brings the 7mm-08 into contention as well, but then the better option would be the 284 Winchester. So it's up to you. I will add to the .308, there are some decent BC bullets now that will perform admirably to longer distances. The JLK 175 and 180LBT, Hornady BTHP 178, and the Berger 185 top the list.
"Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it.  But small is the gate and narrow the road that leads to life, and only a few find it.
If you find your self in a fair fight, your tactics suck!- Marine 1st Sergeant Jim Ryfinger
Friends don't let friends develop canonitis!
arguing over the internet is like the special Olympics....even if you win, you are still...special!