Don't throw it out- Fire form it. We have all had a few for one reason or another Unless they are totally screwed up I just blow them back out. Kind of depends on how bad they are and how I do it Some times I use bullseye with a wax/bullet lube plug. Just hold it straight up in the air and pull the trigger, when the blast of bullseye hits that gummy plug it fireforms the chamber well and case saved. I don't think anything puts me up the tree worse than a empty hole in a box of 50 or 100 because I munched a piece of brass. Sometimes I anneal first and sometimes I use a lead bullet to hold the case tight againt the bolt. You have nothing to loose, its already screwed up.