I know you can lift 200 pounds with a 700 extractor... probably more but I can't.
I've beaten a badly stuck case out of a Model 7 by driving the open bolt handle down on a wood bench. Hard. I'm sure someone could calculate the force of driving a 7 lb rifle down over 12" at say... 10% force? Enough anyway that I was 100% sure I was going to shear the soldered on handle off. Case came free, and the rifle is still in use with no ill effects. I will confess I was surprised at how hard a beating a Rem 7/700 bolt handle and extractor can take.