The state of MD does not allow for this.
The handgun or rifle used at the range must be carried to and from the range in a particular manner.
The firearms must be unloaded and in a place in the car separate from the ammunition.
I usually carry the handguns or rifles secured in the trunk with the ammo in the passenger compartment, usually in a container of some sort. I make sure that I can assemble all in a very short period of time (JUST IN CASE).
When travelling with firearms, I always am aware if a car is following, and if so, take whatever measures may be appropriate. But I always try to be aware of my surroundings and who may be near and pose a threat. You can usually avoid a threat. If you can't avoid a threat, a car is a great weapon if used "properly".
"The state of MD does not allow for this. The handgun or rifle used at the range must be carried to and from the range in a particular manner. The firearms must be unloaded and in a place in the car separate from the ammunition."
Yep, I always have to stop at the state line before entering the People's Republic of Maryland to get legal. What a pain. In West Virginia everyone just assumes your armed :)