Same thing happened to my friend's Savage when he tried to chamber one of my rounds from my rifle that I had only neck size. Apparently my chamber was larger than his. (genetics I guess) If your bolt is in the upmost position you can rapthe bolt handle with a rubber mallet.Start out lightly and increase taps until the bolt releases. It shoudl open and hopefully draw out the round.But for the love of God DO NOT TRY TO PUT ANYTHING DOWN THE BARREL AND TRY TO KNOCK IT OUT.