Admiral Nimitz (bet you never heard that before),
I purchased a Browning A-Bolt II Composite Stalker in .338 Win. Magnum this September for an elk hunt. I am very pleased with it.
I did not have the time to accurize it fully using the BOSS. However, I set the BOSS to the factory recommended setting for my ammunition and was shooting 3" groups at 200 yards off a less than perfect rest (some old blankets).
The recoil felt slightly heavier than a 30-06. I fired 22 rounds. My shoulder was a little sore for one day and had a small yellow bruise.
From a recoil standpoint I don't think you would need the muzzlebreak in 30-06 but the potential to accurize your rifle for factory ammunition still makes it attractive. Remember that the muzzlebreak makes the rifle a lot louder to the user and those around him. (In the case of my .338 a LOT louder.)
The action and safety were within easy reach and smooth to operate. The only thing I didn't care for was that the safety must be "off safe" to operate the action. That creates a minor safety issue when loading and unloading.
It has a floor plate which swings down and forward to which a box magazine attaches. With a little practice attaching and removing the magazine is a cinch.
If I were in the market for another bolt action it would be an A-Bolt II.