My Winchester 24-gun (so it more likely holds 16 long guns comfortably, and which is completely fine) safe from Tractor Supply weighed 509 lbs empty. I rented an appliance dolly from U-haul (DAMN good use of $15) and my brother and my 16 YO (6+' tall) nephew helped get it out of my wife's minvan, where it has sat for 2 weeks. Around to the back yard. Up on the deck, off the deck, down 5-6 steps, and through my basement into my work room. It was back-breaking work, but it is in place, working flawlessly, and I'm very happy with it. Someday I'll secure it to the concrete floor, but for now I have excellent peace of mind. A serious safe/RSC cracker with appropriate tools could get into it of course. But it would take time and planning. And 3-4 guys and an appliance dolly to get it out. So it should "defeat" any casual, and even somewhat determined thief.