If only I had gotten a 50 cal while they were legal here in the state
You may be in luck. Check this out:
http://www.serbu.com/top/bfg50.phpUnless laws have recently changed, this .50 cal is legal in California because the law defines the illegal shell by dimensions. This company makes a gun to shoot shells that are slightly smaller, so it's legal. If you click on "California," there should be a picture of their shells.
