Originally Posted by MeefZah
I would wager the bullet was not properly crimped by Winchester. The casing probably got dented up as it was being racked forward by the slide and the bullet became dislodged, causing the casing to feed improperly and get pinched as the slide was coming home. The force of the slide slamming it home dislodged the bullet the rest of the way and dumped the powder down the barrel. Primer wouldn't be indented because you never pulled the trigger on that round; it jammed prior to feeding into the chamber.
Thanks fellas. I was hoping it was just a bad round. I am glad I looked into the chamber before shooting again. Even if it wasnt lodged in tightly I am sure it would have sucked to shoot the next round into it.