Get a brake made for a 6.5 cal 20 to 25 thousands over bore dia exit hole for the best recoil reduction contact Nathan Wright--muzzlebrakesandmore.com-- get a 4 port brake made for your rifle--45 bucks shipped--smokin deal
I have done several factory barrel swaps on Remington 700 actions almost all of them have not required any special work at all. It is just a matter of screwing the barrel on the action and checking it with a go and no go gauge. I have also timed several hundred muzzle brakes and it is a 10...
The most accurate rifles I have ever built were done on Remington 700 actions that were not trued in any way--I have used Bat, stiller,Nesika,Lawton, and a few other actions. Ross