I bought a can of this dry film case lube mostly as an experiment, and am very happy that I did.  It's so easy to put a thin film of lube over the case, and it doesn't leave the cases all slimy and sticky.  Action in my resizing die is smooth, and the shells don't show signs of excess strain or friction.  I should have thought about using dry film a long time ago, but that's why Hornady is a name hunters and sport shooters have come to rely on.  Buy this!  You won't regret it!