The INGO FAQ has (see my sig) has some info on firearm-restricted areas (Schools, airports, casinos, etc...). The same restrictions apply to long guns as to (legally carried) handguns.
Outside of those restrictions, you can carry a long gun however you want. I think most folks will keep them cased while in the car, simply to protect the gun. It is not illegal to carry it loaded and next to you on the seat, however.
I've carried in a casino *facepalm*
Yeah, yeah, I know.... Just giving examples, and redirecting him to the FAQ and the real I.C.. Technically, you CAN carry in schools, to. Its just hard to get the appropriate authorization.Not all casinos in Indiana are created equal.
In the I.C., the only casinos that are verboten are the riverboat casinos.
-J-