GB', et.al.
I've had such good luck with Millett Angle-Loc's that I wouldn't bother paying higher prices for any other ring. I've used their 'Extended' rings as well as their regular-type, which are all adjustable for windage. I Loc-Tite them all.
Why bother banging your head over this when the Angle Loc's can easily solve the problem? Move the rear ring a Little to the right, move the front ring a Little to the left, and you will easily center those shots that were 8+ inches to the right at 25 yards. For height adjustment I'd shim the inside of the front ring 'just a touch' on the Bottom to bring down the point of impact.
I admit that I'm believing you already know these things, but I'm seriously telling you that when I've mounted scopes on the last 5 or 6 Remingtons, and then lightened their trigger pulls, the rifles have shot like a house of fire......with properly tested/developed handloads being very accurate. (An RCBS Trigger Gauge helps us set the triggers to 40 ounces for the varminters, and a little heavier for the big-game models.)
I have a friend who used to be Real Big on Brownings and Sakos. Now he's Very Happy with the Remingtons we've worked on. You've got the right brand when you choose Remington; now you can buy the right ring if you go with Millett.
Not bragging, just very opinionated in favor of that combination....
Take care,
SS'