Re: Driving with loaded gun in vehicle
The Texas law states and restricts "handgun"(s) specifically, and seems to be silent on restrictions of rifles and shotguns in Motor vehicles, without reference to condition. (loaded or unloaded, or cased for that matter)
It is NOT uncommon in the west for this to be so, particularly in rural areas, however some municipalities do restrict loaded rifles and shotguns, so you must look at local restrictions as well.
Here on Colorado, we don't restrict rifles and shotguns in MOST areas EXCEPT when in engaged in Big game hunting, a nannyist restriction for those hunters of less than good sense.
You are what you do, when it counts.