THANKS SO MUCH! I tried that technique this morning and it worked perfectly. It only took a couple of light taps, and I could feel the case moving ever so slightly until it just dropped out. I like the finesse approach much better than the "just pound on the bolt handle" idea.. 
Of course, getting the stuck case out doesn't educate me about what caused the case to get stuck. So, I've got to work on finding that out.  After wiping he chamber thoroughly, I put the case that was stuck back in and closed the bolt to see what would happen. It got stuck again, but this time I knew how to get it right out.  So, I am thinking it has something to do with the case brand (Hornady), or maybe just this particular case (could be on me, not Hornady). I'll keep  trying different things until I find out the cause.
Another tip for anyone else who wants to try this method : I made a little "straw" out of several wraps paper and placed it in the end of the muzzle of my rifle to protect the crown.
THANKS AGAIN!