I doubt the law is that if you are hunting or fishing, or going to or from such activity, you can carry a concealed handgun. This would be a loophole bigger than a Mack truck and instantly convert everybody to hunting and fishing. However, I am not going to do the homework on this one because I am tired and also confident the motley crew, I mean brain trust, at ETS will chime in with the straight skinny.
Yes, that really is the law

If you're already carrying a loaded rifle/shotgun how is it a loophole? If you're really interested in the skinny visit the law section of calguns.net, they even have recommendations for lawyers who specialize in gun law