Hmmm... do you have P5? If so you can do some displacement making followed by texturing and layering in Photoshop. The effect of the shot will vary greatly with the type of ammunition, the distance, and what part of the body has been shot. In class (I have a MS in Forensic Science)they showed us a picture of a woman who was shot 3 times with a shotgun at close range. The shot to the head caused the lower part of the head to explode. The shot to the chest ripped off a lot of her skin to reveal fat and underlining tissue. And lastly the shot to the arm nearly severed it from the body. Of course there was blood spatter and brain tissue in several places. My suggestion is that you get a little morbid and do the research to figure out what kind of effect you want.