The Turners Outdoorsman Shooting Sports Fair is a heck of a good time. It is held in Corona for a weekend and has a lot of manufacturers there with all their latest toys. There is also a firing line where you can try out different types of guns. If you are thinking of buying a new type of gun, it a great chance to try it out first.
Here is a link to the flyer: http://www.turners.com/engage/events_sportsfair_2013.php