Depends. I removed all of the dividers. I kept one top shelf, but the bottom 90% of the safe is just open. I can put quite a few more guns in it than it is rated for. Yes they touch each other, and yes I have to take several out to get to the ones in the back. But it doesn't hurt anything. The ones most used are in the front.
BTW, bolt guns take up less space if you leave the bolts open. I've seen guys squeeze in a few more by alternating the direction they are stored, every other gun is muzzle down, between 2 that are stored muzzle up.
I have 2, neither is particularly expensive. My goal was to keep the guns away from my kids when they were growing up and away from grandkids now. If a thief REALLY wants them they will get them.