It's a good story but...

[Double_Deuce]

Its possible, but I doubt that it really happened. Its not something you are going to do if tanks are moving around especially in wooded terrain. Then you have, based on his verbiage, him making it sound like the gunner is doing the loading and firing. To my knowledge, all US tanks used in Korea had 5 man crews, including loaders and with the exception of the M46 and M26 you are pretty well squeezed in and not going to be moving around much at least not from position to position. Of course, when real bullets are involved you do what you have too, but my guess is he either made it up for book sales or heard the story from someone else who heard it through the grapevine and so on.