To dream of a shotgun represents the power to make a decision that is significant, powerful, or has lasting consequences. A shotgun symbolizes choices that are dramatic. Dealing with a problem with one final shot.
If bad people in a dream hold a shotgun it represents negative personality traits with the power to make dramatic choices that could sabotage you, or "burn bridges." It may also reflect your own wish to get back at someone powerfully.
To dream of a sawed-off shotgun symbolizes you or some aspect of your personality that can make very powerful quick decisions. Big choices made on the spot. If a bad or evil person in a dream has a sawed-off shot gun this can symbolize very powerful short term rash decisions.
Example: A very young girl dreamed of seeing her father shooting her with a shotgun. In waking life her parents were getting divorced and she feared deciding which parents to live with because she felt that one of them would stop loving her. The shotgun in this case may have reflected how powerful and dangerous she felt deciding which parent to live with was.
*Please See Guns