I had a disagreement with my GM last night and thought I would run it by the smarter-than-me people here.
Mithril Chain gives Hardness 15 and Stoneskin gives DR 10/Adamantine. My argument is that the chain would reduce the first 15 points of weapon damage before any remaining damage would be applied to the stoneskin. My GM argues that Stoneskin trumps the chain.
Who is right?