Any one that I own, M70's, M700's, M77's, Mauser's, Marlin's, Savage's...
Ive had a lot of rem 700 and savage extractors fail. They are by far the least reliable. I wont use a 700 anymore. They are like leupolds.
I have had none and will be taking my Leupold scoped 338-06 M700 again to BC (hopefully...) in September for goat, moose and elk. A lot of critters have fallen to that rifle.