Depending on what you shoot and drive (long long guns or carbines and length of cargo bay) this idea may or may not work but, when I build my drawer system for the rear of my 60 there will be a double stacked drawer dedicated to this purpose. top drawer will be guns and bottom will be for ammo to keep everything legal. Most of my rifles are Cabines so they fit from the rear gate to the seat back but, shotguns and dads 7mag are a bit long for this. also im going to put one of those truck rear window racks on the back of the rear seat so when I'm hunting/on my way to hunting when/if I see something I can get at my rifle quick but, its more secure than laying on the pass seat.