I go 45 on both....but I've been known to go tighter too. Some guys go tighter, but that's where I stay. The action is pillar bedded and should be good to go once a true bedding job has been completed.
If your mag box is binding, the tighter you go the worse things get.
308 magazine or 223 magazine?
I enjoy handguns and I really like shotguns,...but I love rifles!