long gun in car?

So I've searched and come up confused, so here goes.

I know it is legal to carry a loaded handgun in my vehicle or on my person. Is it also legal to carry a loaded long gun in my vehicle?

I ask because I find it unnecessary to unload my rifle while going to and from hunting, so would i be legal to just throw it in the back seat?

(ps, this is a marlin lever gun on half cock, so I'm not really worried about a ND)