First, do a search for this problem......
Grab a shooting buddy....Have him hold the grip and barrel muzzle end up, cyl. open. A glove to protect his hand from the front sight would be a good thing. I have used a hardwood dowel (different sizes available at Loew's or Home Depot) and a small hammer. Most of the time the bullet will come out buy hitting the end of the dowel. Sometimes more persuasion is needed but a bigger hammer is not necessarily the answer here. I have read where some people soak the bore in various solvents overnight and or use rods of different material but at the range this wasn't possible. I have never seen a case where the bullet didn't come out but I am sure others have. Others will, I'm sure, offer other fixes.
Richard