I tried many of the methods offered above this post and used a combo of a few to eject the live round. Field stripping the shield and inspecting everything possible I inserted a wooden dowel(pencil cut flush) inserted it in the barrel and lightly tapped the eraser end on the wooden work bench to see if the lodged live round would move. I could see it did but field stripped I still could not remove the barrel nor assembled could I muscle/force racking the slide. BUT!!!! after going through the exact same motions I re assembled the Shield but did NOT lock the lever that locks the slide to the lower assembly, and easily racked the slide and out popped the round that caused me so much grief! Hope this helps somebody else. Be SAFE, especially when you know a live round is a factor.

You, Sir, are absolutely brilliant! I was on my way to the local gunsmith after having tried everything reasonable. My Shield jammed this morning after a failure to fire. So, I had to assume the round still had some life left which eliminated the stuff-down-the-barrel approach. A few smacks on the grip while holding the gun by the slide and all was well again. Thank your teacher for me too.