Provided you haven't already pushed the bullet way back into the case, AND if it contains a mild charge (thinking of the tight neck scenario here), why not remove the extractor from the bolt, replace the bolt in the gun and fire it? Then tap the empty case out with any old rod, replace extractor, and tear down the remaining cartridges.
Failing that, seek professional help.
Last edited by gnoahhh; 02/10/12.