RE: precision bullets
That's one thing about the PR bullets..............they are VERY consistent.
I think you'll find those Extremes will work very well for you. My Knight just eats them up in 300, 360, & 400gr versions. It also likes the QT ballistics tips in the same weights. I've not had as good of luck with the Dead Centers though..............those always throw a flyer into every group I've tried.